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Author | Lubk, A.; Guzzinati, G.; Börrnert, F.; Verbeeck, J. | ||||
Title | Transport of intensity phase retrieval of arbitrary wave fields including vortices | Type | A1 Journal article | ||
Year | 2013 | Publication | Physical review letters | Abbreviated Journal | Phys Rev Lett |
Volume | 111 | Issue | 17 | Pages | 173902-173905 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | The phase problem can be considered as one of the cornerstones of quantum mechanics intimately connected to the detection process and the uncertainty relation. The latter impose fundamental limits on the manifold phase reconstruction schemes invented to date, in particular, at small magnitudes of the quantum wave. Here, we show that a rigorous solution of the transport of intensity reconstruction (TIE) scheme in terms of a linear elliptic partial differential equation for the phase provides reconstructions even in the presence of wave zeros if particular boundary conditions are given. We furthermore discuss how partial coherence hampers phase reconstruction and show that a modified version of the TIE reconstructs the curl-free current density at arbitrary (in)coherence. Our results open the way for TIE-based phase retrieval of arbitrary wave fields, eventually containing zeros such as phase vortices. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | New York, N.Y. | Editor | ||
Language | Wos | 000326148400006 | Publication Date | 2013-10-24 | |
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Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0031-9007;1079-7114; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 8.462 | Times cited | 40 | Open Access | |
Notes | Esteem2; Vortex; esteem2ta ECASJO; | Approved | Most recent IF: 8.462; 2013 IF: 7.728 | ||
Call Number | UA @ lucian @ c:irua:111093 | Serial | 3726 | ||
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Author | Wang, C.; Ke, X.; Wang, J.; Liang, R.; Luo, Z.; Tian, Y.; Yi, D.; Zhang, Q.; Wang, J.; Han, X.-F.; Van Tendeloo, G.; Chen, L.-Q.; Nan, C.-W.; Ramesh, R.; Zhang, J. | ||||
Title | Ferroelastic switching in a layered-perovskite thin film | Type | A1 Journal article | ||
Year | 2016 | Publication | Nature communications | Abbreviated Journal | Nat Commun |
Volume | 7 | Issue | 7 | Pages | 10636 |
Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
Abstract | A controllable ferroelastic switching in ferroelectric/multiferroic oxides is highly desirable due to the non-volatile strain and possible coupling between lattice and other order parameter in heterostructures. However, a substrate clamping usually inhibits their elastic deformation in thin films without micro/nano-patterned structure so that the integration of the non-volatile strain with thin film devices is challenging. Here, we report that reversible in-plane elastic switching with a non-volatile strain of approximately 0.4% can be achieved in layered-perovskite Bi2WO6 thin films, where the ferroelectric polarization rotates by 90 degrees within four in-plane preferred orientations. Phase-field simulation indicates that the energy barrier of ferroelastic switching in orthorhombic Bi2WO6 film is ten times lower than the one in PbTiO3 films, revealing the origin of the switching with negligible substrate constraint. The reversible control of the in-plane strain in this layered-perovskite thin film demonstrates a new pathway to integrate mechanical deformation with nanoscale electronic and/or magnetoelectronic applications. | ||||
Address | Department of Physics, Beijing Normal University, 100875 Beijing, China | ||||
Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | English | Wos | 000371020600002 | Publication Date | 2016-02-03 |
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Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 2041-1723 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 12.124 | Times cited | 40 | Open Access | |
Notes | The work in Beijing Normal University is supported by the NSFC under contract numbers 51322207, 51332001 and 11274045. J.Z. also acknowledges the support from National Basic Research Program of China, under contract No. 2014CB920902. G.V.T. acknowledges the funding from the European Research Council under the Seventh Framework Program (FP7), ERC Advanced Grant No. 246791-COUNTATOMS. X.K. acknowledges the funding from NSFC (Grant No.11404016) and Beijing University of Technology (2015-RD-QB-19). J.W. acknowledges the funding from NSFC (Grant number 51472140). L.-Q.C. acknowledges the supporting by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Award FG02-07ER46417. R.L. acknowledges Tsinghua National Laboratory for Information Science and Technology (TNList) Cross-discipline Foundation. Z.L. acknowledges the support from the NSFC (No.11374010 and No.11434009). Q.Z. and X.-F.H. acknowledge the funding support from NSFC (Grant No. 11434014). R.R. acknowledges support from the National Science Foundation (Nanosystems Engineering Research Center for Translational Applications of Nanoscale Multiferroic Systems) under grant number EEC-1160504. | Approved | Most recent IF: 12.124 | ||
Call Number | c:irua:130978 | Serial | 4007 | ||
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Author | Ozkan, A.; Dufour, T.; Silva, T.; Britun, N.; Snyders, R.; Bogaerts, A.; Reniers, F. | ||||
Title | The influence of power and frequency on the filamentary behavior of a flowing DBD—application to the splitting of CO2 | Type | A1 Journal article | ||
Year | 2016 | Publication | Plasma sources science and technology | Abbreviated Journal | Plasma Sources Sci T |
Volume | 25 | Issue | 25 | Pages | 025013 |
Keywords | A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
Abstract | In this experimental study, a flowing dielectric barrier discharge operating at atmospheric pressure is used for the splitting of CO2 into O2 and CO. The influence of the applied frequency and plasma power on the microdischarge properties is investigated to understand their role on the CO2 conversion. Electrical measurements are carried out to explain the conversion trends and to characterize the microdischarges through their number, their lifetime, their intensity and the induced electrical charge. Their influence on the gas and electrode temperatures is also evidenced through optical emission spectroscopy and infrared imaging. It is shown that, in our configuration, the conversion depends mostly on the charge delivered in the plasma and not on the effective plasma voltage when the applied power is modified. Similarly, at constant total current, a better conversion is observed at low frequencies, where a less filamentary discharge regime with a higher effective plasma voltage than that at a higher frequency is obtained. |
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Publisher | Place of Publication | Editor | |||
Language | Wos | 000372337900015 | Publication Date | 2016-02-25 | |
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Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0963-0252 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.302 | Times cited | 40 | Open Access | |
Notes | The authors acknowledge financial support from the IAPVII/ 12, P7/34 (Inter-university Attraction Pole) program ‘PSI-Physical Chemistry of Plasma-Surface Interactions’, financially supported by the Belgian Federal Office for Science Policy (BELSPO). A Ozkan would like to thank the financial support given by ‘Fonds David et Alice Van Buuren’. N Britun is a postdoctoral researcher of the F.R.S.-FNRS, Belgium. | Approved | Most recent IF: 3.302 | ||
Call Number | c:irua:131904 | Serial | 4021 | ||
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Author | Béché, A.; Goris, B.; Freitag, B.; Verbeeck, J. | ||||
Title | Development of a fast electromagnetic beam blanker for compressed sensing in scanning transmission electron microscopy | Type | A1 Journal article | ||
Year | 2016 | Publication | Applied physics letters | Abbreviated Journal | Appl Phys Lett |
Volume | 108 | Issue | 108 | Pages | 093103 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | The concept of compressed sensing was recently proposed to significantly reduce the electron dose in scanning transmission electron microscopy (STEM) while still maintaining the main features in the image. Here, an experimental setup based on an electromagnetic beam blanker placed in the condenser plane of a STEM is proposed. The beam blanker deflects the beam with a random pattern, while the scanning coils are moving the beam in the usual scan pattern. Experimental images at both the medium scale and high resolution are acquired and reconstructed based on a discrete cosine algorithm. The obtained results confirm that compressed sensing is highly attractive to limit beam damage in experimental STEM even though some remaining artifacts need to be resolved. | ||||
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Publisher | Place of Publication | Editor | |||
Language | Wos | 000375329200043 | Publication Date | 2016-03-01 | |
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Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0003-6951 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.411 | Times cited | 40 | Open Access | |
Notes | A.B and J.V. acknowledge funding from the European Research Council under the 7th Framework Program (FP7), ERC Starting Grant No. 278510 VORTEX and under a contract for an Integrated Infrastructure Initiative (Reference No. 312483 ESTEEM2), from the GOA project SOLARPAINT and the POC project I13/009 from the University of Antwerp. B.G. acknowledges the Research Foundation Flanders (FWO Vlaanderen) for a postdoctoral research grant. The QuAnTem microscope was partially funded by the Hercules Foundation. We thank Zhaoliang Liao from the Mesa+ laboratory at the University of Twente for the perovskite test sample.; esteem2jra3 ECASJO; | Approved | Most recent IF: 3.411 | ||
Call Number | c:irua:131895 c:irua:131895UA @ admin @ c:irua:131895 | Serial | 4023 | ||
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Author | Sobrino Fernandez, M.M.; Neek-Amal, M.; Peeters, F.M. | ||||
Title | AA-stacked bilayer square ice between graphene layers | Type | A1 Journal article | ||
Year | 2015 | Publication | Physical review : B : condensed matter and materials physics | Abbreviated Journal | Phys Rev B |
Volume | 92 | Issue | 92 | Pages | 245428 |
Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
Abstract | Water confined between two graphene layers with a separation of a few A forms a layered two-dimensional ice structure. Using large scale molecular dynamics simulations with the adoptable ReaxFF interatomic potential we found that flat monolayer ice with a rhombic-square structure nucleates between the graphene layers which is nonpolar and nonferroelectric. We provide different energetic considerations and H-bonding results that explain the interlayer and intralayer properties of two-dimensional ice. The controversial AA stacking found experimentally [Algara-Siller et al., Nature (London) 519, 443 (2015)] is consistent with our minimum-energy crystal structure of bilayer ice. Furthermore, we predict that an odd number of layers of ice has the same lattice structure as monolayer ice, while an even number of ice layers exhibits the square ice AA stacking of bilayer ice. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Lancaster, Pa | Editor | ||
Language | Wos | 000366731800004 | Publication Date | 2015-12-17 | |
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Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1098-0121; 1550-235x | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.836 | Times cited | 40 | Open Access | |
Notes | ; This work was supported by the ESF-Eurographene project CONGRAN, and the Flemish Science Foundation (FWO-Vl). ; | Approved | Most recent IF: 3.836; 2015 IF: 3.736 | ||
Call Number | c:irua:130203 | Serial | 4127 | ||
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Author | Van Boxem, W.; Van der Paal, J.; Gorbanev, Y.; Vanuytsel, S.; Smits, E.; Dewilde, S.; Bogaerts, A. | ||||
Title | Anti-cancer capacity of plasma-treated PBS: effect of chemical composition on cancer cell cytotoxicity | Type | A1 Journal article | ||
Year | 2017 | Publication | Scientific reports | Abbreviated Journal | Sci Rep-Uk |
Volume | 7 | Issue | 1 | Pages | 16478 |
Keywords | A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
Abstract | We evaluate the anti-cancer capacity of plasma-treated PBS (pPBS), by measuring the concentrations of NO2 − and H2O2 in pPBS, treated with a plasma jet, for different values of gas flow rate, gap and plasma treatment time, as well as the effect of pPBS on cancer cell cytotoxicity, for three different glioblastoma cancer cell lines, at exactly the same plasma treatment conditions. Our experiments reveal that pPBS is cytotoxic for all conditions investigated. A small variation in gap between plasma jet and liquid surface (10 mm vs 15 mm) significantly affects the chemical composition of pPBS and its anti-cancer capacity, attributed to the occurrence of discharges onto the liquid. By correlating the effect of gap, gas flow rate and plasma treatment time on the chemical composition and anti-cancer capacity of pPBS, we may conclude that H2O2 is a more important species for the anti-cancer capacity of pPBS than NO2 −. We also used a 0D model, developed for plasma-liquid interactions, to elucidate the most important mechanisms for the generation of H2O2 and NO2 −. Finally, we found that pPBS might be more suitable for practical applications in a clinical setting than (commonly used) plasma-activated media (PAM), because of its higher stability. | ||||
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Publisher | Place of Publication | Editor | |||
Language | Wos | 000416398100028 | Publication Date | 2017-11-22 | |
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Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 2045-2322 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 4.259 | Times cited | 40 | Open Access | OpenAccess |
Notes | We acknowledge financial support from the Fund for Scientific Research (FWO) Flanders (Grant No. 11U5416N), the Research Council of the University of Antwerp and the European Marie Skłodowska-Curie Individual Fellowship “LTPAM” within Horizon2020 (Grant No. 743151). Finally, we would like to thank P. Attri and A. Privat Maldonado for the valuable discussions. | Approved | Most recent IF: 4.259 | ||
Call Number | PLASMANT @ plasmant @c:irua:147192 | Serial | 4766 | ||
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Author | Brodu, A.; Ballottin, M.V.; Buhot, J.; van Harten, E.J.; Dupont, D.; La Porta, A.; Prins, P.T.; Tessier, M.D.; Versteegh, M.A.M.; Zwiller, V.; Bals, S.; Hens, Z.; Rabouw, F.T.; Christianen, P.C.M.; de Donega, C.M.; Vanmaekelbergh, D. | ||||
Title | Exciton Fine Structure and Lattice Dynamics in InP/ZnSe Core/Shell Quantum Dots | Type | A1 Journal article | ||
Year | 2018 | Publication | ACS Photonics | Abbreviated Journal | Acs Photonics |
Volume | 5 | Issue | 5 | Pages | 3353-3362 |
Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
Abstract | Nanocrystalline InP quantum dots (QDs) hold promise for heavy-metal-free optoelectronic applications due to their bright and size tunable emission in the visible range. Photochemical stability and high photoluminescence (PL) quantum yield are obtained by a diversity of epitaxial shells around the InP core. To understand and optimize the emission line shapes, the exciton fine structure of InP core/shell QD systems needs be investigated. Here, we study the exciton fine structure of InP/ZnSe core/shell QDs with core diameters ranging from 2.9 to 3.6 nm (PL peak from 2.3 to 1.95 eV at 4 K). PL decay measurements as a function of temperature in the 10 mK to 300 K range show that the lowest exciton fine structure state is a dark state, from which radiative recombination is assisted by coupling to confined acoustic phonons with energies ranging from 4 to 7 meV, depending on the core diameter. Circularly polarized fluorescence line-narrowing (FLN) spectroscopy at 4 K under high magnetic fields (up to 30 T) demonstrates that radiative recombination from the dark F = +/- 2 state involves acoustic and optical phonons, from both the InP core and the ZnSe shell. Our data indicate that the highest intensity FLN peak is an acoustic phonon replica rather than a zero-phonon line, implying that the energy separation observed between the F = +/- 1 state and the highest intensity peak in the FLN spectra (6 to 16 meV, depending on the InP core size) is larger than the splitting between the dark and bright fine structure exciton states. | ||||
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Publisher | Place of Publication | Editor | |||
Language | Wos | 000442185900049 | Publication Date | 2018-07-18 | |
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Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 2330-4022 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 6.756 | Times cited | 40 | Open Access | OpenAccess |
Notes | ; We acknowledge the support of the HFML-RU/FOM, member of the European Magnetic Field Laboratory (EMFL). D.V. and Z.H. acknowledge support by the European Commission via the Marie-Sklodowska Curie action Phonsi (H2020-MSCA-ITN-642656) and the Marie Sklodowska-Curie Action Compass (H2020 MSCA-RISE-691185). Z.H. acknowledges the Research Foundation Flanders (project 17006602) and Ghent University (GOA no. 01G01513). Z.H. and S.B. acknowledge SIM vzw (SBO-QDOCCO). F.T.R. acknowledges financial support from The Netherlands Organisation for Scientific Research NWO (Gravitation program Multiscale Catalytic Energy Conversion and VENI grant number 722.017.002). This work was also supported by the Dutch NWO-Physics Program DDC13, ERC Advanced Grant 692691 “First step”, and ERC Starting Grant 335078 “COLOURATOM”. ; ecas_sara | Approved | Most recent IF: 6.756 | ||
Call Number | UA @ lucian @ c:irua:153753UA @ admin @ c:irua:153753 | Serial | 5100 | ||
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Author | Xi, J.; Yang, S.; Silvioli, L.; Cao, S.; Liu, P.; Chen, Q.; Zhao, Y.; Sun, H.; Hansen, J.N.; Haraldsted, J.-P.B.; Kibsgaard, J.; Rossmeisl, J.; Bals, S.; Wang, S.; Chorkendorff, I. | ||||
Title | Highly active, selective, and stable Pd single-atom catalyst anchored on N-doped hollow carbon sphere for electrochemical H₂O₂ synthesis under acidic conditions | Type | A1 Journal article | ||
Year | 2021 | Publication | Journal Of Catalysis | Abbreviated Journal | J Catal |
Volume | 393 | Issue | Pages | 313-323 | |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | Single-atom catalysts (SACs) have recently attracted broad scientific interests due to their unique structural feature, the single-atom dispersion. Optimized electronic structure as well as high stability are required for single-atom catalysts to enable efficient electrochemical production of H2O2. Herein, we report a facile synthesis method that stabilizes atomic Pd species on the reduced graphene oxide/Ndoped carbon hollow carbon nanospheres (Pd1/N-C). Pd1/N-C exhibited remarkable electrochemical H2O2 production rate with high faradaic efficiency, reaching 80%. The single-atom structure and its high H2O2 production rate were maintained even after 10,000 cycle stability test. The existence of single-atom Pd as well as its coordination with N species is responsible for its high activity, selectivity, and stability. The N coordination number and substrate doping around Pd atoms are found to be critical for an optimized adsorption energy of intermediate *OOH, resulting in efficient electrochemical H2O2 production. (C) 2020 Elsevier Inc. All rights reserved. | ||||
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Publisher | Place of Publication | Editor | |||
Language | Wos | 000640923500003 | Publication Date | 2020-11-26 | |
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Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0021-9517 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 6.844 | Times cited | 40 | Open Access | Not_Open_Access |
Notes | This research was financially supported by the National Natural Science Foundation of China (No. 51772110), Natural Science Foundation of Hubei Province (No. 2019CFB539), Danmarks Innovationsfond within the ProActivE project (5160-00003B), Villum Foundation V-SUSTAIN grant 9455 to the Villum Center for the Science of Sustainable Fuels and Chemicals, the Carlsberg Foundation grant CF18-0435, the Institutional Research Program (2E30220) of the Korea Institute of Science and Technology (KIST), Shenzhen Science and Technology Plan under Grant (JCYJ20170818160751460) and the Open Project of Key Laboratory of Green Chemical Engineering Process of Ministry of Education (No. GCP20200205). The authors would like to acknowledge the Analytical and Testing Center of Huazhong University of Science and Technology and the Wuhan National Laboratory for Optoelectronics for SEM, TEM, Raman and XPS measurements. | Approved | Most recent IF: 6.844 | ||
Call Number | UA @ admin @ c:irua:178321 | Serial | 6796 | ||
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Author | Michel, K.H.; Verberck, B.; Nikolaev, A.V. | ||||
Title | Anisotropic packing and one-dimensional fluctuations of C60 molecules in carbon nanotubes | Type | A1 Journal article | ||
Year | 2005 | Publication | Physical review letters | Abbreviated Journal | Phys Rev Lett |
Volume | 95 | Issue | 18 | Pages | 185506-185506,4 |
Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
Abstract | The confinement of a C-60 molecule encapsulated in a cylindrical nanotube depends on the tube radius. In small tubes with radius R-T less than or similar to 7 A, a fivefold axis of the molecule coincides with the tube axis. The interaction between C-60 molecules in the nanotube is then described by a O-2-rotor model on a 1D liquid chain with coupling between orientational and displacive correlations. This coupling leads to chain contraction. The structure factor of the 1D liquid is derived. In tubes with a larger radius the molecular centers of mass are displaced off the tube axis. The distinction of two groups of peapods with on- and off-axis molecules suggests an explanation of the apparent splitting of A(g) modes of C-60 in nanotubes measured by resonant Raman scattering. | ||||
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Publisher | Place of Publication | New York, N.Y. | Editor | ||
Language | Wos | 000232887400041 | Publication Date | 2005-10-28 | |
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Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0031-9007;1079-7114; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 8.462 | Times cited | 40 | Open Access | |
Notes | Approved | Most recent IF: 8.462; 2005 IF: 7.489 | |||
Call Number | UA @ lucian @ c:irua:94717 | Serial | 127 | ||
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Author | Szafran, B.; Peeters, F.M.; Bednarek, S.; Adamowski, J. | ||||
Title | Anisotropic quantum dots: Correspondence between quantum and classical Wigner molecules, parity symmetry, and broken-symmetry states | Type | A1 Journal article | ||
Year | 2004 | Publication | Physical review : B : condensed matter and materials physics | Abbreviated Journal | Phys Rev B |
Volume | 69 | Issue | Pages | 125344,1-15 | |
Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Lancaster, Pa | Editor | ||
Language | Wos | 000221259000107 | Publication Date | 2004-03-31 | |
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Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1098-0121;1550-235X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.836 | Times cited | 40 | Open Access | |
Notes | Approved | Most recent IF: 3.836; 2004 IF: 3.075 | |||
Call Number | UA @ lucian @ c:irua:69384 | Serial | 129 | ||
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Author | Giorgio, S.; Henry, C.R.; Pauwels, B.; Van Tendeloo, G. | ||||
Title | Au particles supported on (110) anatase-TiO2 | Type | A1 Journal article | ||
Year | 2001 | Publication | Microstructure And Processing | Abbreviated Journal | Mat Sci Eng A-Struct |
Volume | 297 | Issue | 1-2 | Pages | 197-202 |
Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
Abstract | Au particles were prepared by evaporation in ultra high vacuum at high temperature, on the surfaces of TiO2 micro-spheres with the anatase structure. The morphology and the structural deformation in Au deposits were studied by high resolution transmission electron microscopy and image simulations by the multislice technique. The particles were polyhedral, limited by (100) and (111) faces. Patches with a hexagonal lattice were found around the particles, which was interpreted as thin Au islands on the surface. In these islands the Au lattice was deformed and perfectly accommodated to the (110) surface of TiO2. (C) 2001 Elsevier Science B.V. All rights reserved. | ||||
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Publisher | Place of Publication | Lausanne | Editor | ||
Language | Wos | 000166241400026 | Publication Date | 2002-07-25 | |
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Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0921-5093; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.094 | Times cited | 40 | Open Access | |
Notes | Approved | Most recent IF: 3.094; 2001 IF: 0.978 | |||
Call Number | UA @ lucian @ c:irua:104204 | Serial | 206 | ||
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Author | Goessens, C.; Schryvers, D.; van Landuyt, J.; Amelinckx, S.; Verbeeck, A.; de Keyzer, R. | ||||
Title | Characterization of crystal defects in mixed tabular silver halide grains by conventional transmission electron microscopy and X-ray diffractometry | Type | A1 Journal article | ||
Year | 1991 | Publication | Journal of crystal growth | Abbreviated Journal | J Cryst Growth |
Volume | 110 | Issue | Pages | 930-941 | |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
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Publisher | Place of Publication | Amsterdam | Editor | ||
Language | Wos | A1991FL02100033 | Publication Date | 0000-00-00 | |
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Series Volume | Series Issue | Edition | |||
ISSN | 0022-0248 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 1.698 | Times cited | 40 | Open Access | |
Notes | Approved | ||||
Call Number | UA @ lucian @ c:irua:48349 | Serial | 321 | ||
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Author | Borgatti, F.; Park, C.; Herpers, A.; Offi, F.; Egoavil, R.; Yamashita, Y.; Yang, A.; Kobata, M.; Kobayashi, K.; Verbeeck, J.; Panaccione, G.; Dittmann, R.; | ||||
Title | Chemical insight into electroforming of resistive switching manganite heterostructures | Type | A1 Journal article | ||
Year | 2013 | Publication | Nanoscale | Abbreviated Journal | Nanoscale |
Volume | 5 | Issue | 9 | Pages | 3954-3960 |
Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
Abstract | We have investigated the role of the electroforming process in the establishment of resistive switching behaviour for Pt/Ti/Pr0.5Ca0.5MnO3/SrRuO3 layered heterostructures (Pt/Ti/PCMO/SRO) acting as non-volatile Resistance Random Access Memories (RRAMs). Electron spectroscopy measurements demonstrate that the higher resistance state resulting from electroforming of as-prepared devices is strictly correlated with the oxidation of the top electrode Ti layer through field-induced electromigration of oxygen ions. Conversely, PCMO exhibits oxygen depletion and downward change of the chemical potential for both resistive states. Impedance spectroscopy analysis, supported by the detailed knowledge of these effects, provides an accurate model description of the device resistive behaviour. The main contributions to the change of resistance from the as-prepared (low resistance) to the electroformed (high resistance) states are respectively due to reduced PCMO at the boundary with the Ti electrode and to the formation of an anisotropic np junction between the Ti and the PCMO layers. | ||||
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Publisher | Place of Publication | Cambridge | Editor | ||
Language | Wos | 000317859400051 | Publication Date | 2013-03-05 | |
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Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 2040-3364;2040-3372; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 7.367 | Times cited | 40 | Open Access | |
Notes | Vortex; Countatoms ECASJO_; | Approved | Most recent IF: 7.367; 2013 IF: 6.739 | ||
Call Number | UA @ lucian @ c:irua:108710UA @ admin @ c:irua:108710 | Serial | 348 | ||
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Author | Schütte, K.; Doddi, A.; Kroll, C.; Meyer, H.; Wiktor, C.; Gemel, C.; Van Tendeloo, G.; Fischer, R.A.; Janiak, C. | ||||
Title | Colloidal nickel/gallium nanoalloys obtained from organometallic precursors in conventional organic solvents and in ionic liquids : noble-metal-free alkyne semihydrogenation catalysts | Type | A1 Journal article | ||
Year | 2014 | Publication | Nanoscale | Abbreviated Journal | Nanoscale |
Volume | 6 | Issue | 10 | Pages | 5532-5544 |
Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
Abstract | Efforts to replace noble-metal catalysts by low-cost alternatives are of constant interest. The organometallic, non-aqueous wet-chemical synthesis of various hitherto unknown nanocrystalline Ni/Ga intermetallic materials and the use of NiGa for the selective semihydrogenation of alkynes to alkenes are reported. Thermal co-hydrogenolysis of the all-hydrocarbon precursors [Ni(COD)(2)] (COD = 1,5-cyclooctadiene) and GaCp* (Cp* = pentamethylcyclopentadienyl) in high-boiling organic solvents mesitylene and n-decane in molar ratios of 1 : 1, 2 : 3 and 3 : 1 yields the nano-crystalline powder materials of the over-all compositions NiGa, Ni2Ga3 and Ni3Ga, respectively. Microwave induced co-pyrolysis of the same precursors without additional hydrogen in the ionic liquid [BMIm][BF4] (BMIm = 1-butyl-3-methyl-imidazolium) selectively yields the intermetallic phases NiGa and Ni3Ga from the respective 1 : 1 and 3 : 1 molar ratios of the precursors. The obtained materials are characterized by transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), IR, powder X-ray diffraction (PXRD) and atomic absorption spectroscopy (AAS). The single-source precursor [Ni(GaCp*)(PMe3)(3)] with a fixed Ni : Ga stoichiometry of 1 : 1 was employed as well. In comparison with the co-hydrogenolytic dual precursor source approach it turned out to be less practical due to inefficient nickel incorporation caused by the parasitic formation of stable [Ni(PMe3)(4)]. The use of ionic liquid [BMIm][BF4] as a non-conventional solvent to control the reaction and stabilize the nanoparticles proved to be particularly advantageous and stable colloids of the nanoalloys NiGa and Ni3Ga were obtained. A phase-selective Ni/Ga colloid synthesis in conventional solvents and in the presence of surfactants such as hexadecylamine (HDA) was not feasible due to the undesired reactivity of HDA with GaCp* leading to inefficient gallium incorporation. Recyclable NiGa nanoparticles selectively semihydrogenate 1-octyne and diphenylacetylene (tolan) to 1-octene and diphenylethylene, respectively, with a yield of about 90% and selectivities of up to 94 and 87%. Ni-NPs yield alkanes with a selectivity of 97 or 78%, respectively, under the same conditions. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Cambridge | Editor | ||
Language | Wos | 000335148800069 | Publication Date | 2014-03-06 | |
Series Editor ![]() |
Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 2040-3364;2040-3372; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 7.367 | Times cited | 40 | Open Access | |
Notes | Approved | Most recent IF: 7.367; 2014 IF: 7.394 | |||
Call Number | UA @ lucian @ c:irua:117251 | Serial | 390 | ||
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Author | Fedina, L.; Gutakovskii, A.; Aseev, A.; van Landuyt, J.; Vanhellemont, J. | ||||
Title | Extended defects formation in Si crystals by clustering of intrinsic point defects studied by in-situ electron irradiation in an HREM | Type | A1 Journal article | ||
Year | 1999 | Publication | Physica status solidi: A: applied research T2 – International Conference on Extended Defects in Semiconductors (EDS 98), Sept. 06-11, 1998, Jaszowiec, Poland | Abbreviated Journal | Phys Status Solidi A |
Volume | 171 | Issue | 1 | Pages | 147-157 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | In situ irradiation experiments in a high resolution electron microscope JEOL-4000EX at room temperature resulted in discovery of the isolated and combined clustering of vacancies and self-interstitial atoms on {111}- and {113}-habit planes both leading to an extended defect formation in Si crystals. The type of the defect is strongly affected by the type of supersaturation of point defects depending on the crystal thickness during electron irradiation. Because of the existence of energy barriers against recombination of interstitials with the extended aggregates of vacancies, a large family of intermediate defect configurations (IDCs) is formed on {113}- and {111}-habit planes at a low temperature under interstitial supersaturation in addition to the well-known {133}-defects of interstitial type. The formation of metastable IDCs inside vacancy aggregates prevents a way of recombination of defects in extended shape. | ||||
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Corporate Author | Thesis | ||||
Publisher | Wiley | Place of Publication | Berlin | Editor | |
Language | Wos | 000078539700020 | Publication Date | 2002-09-10 | |
Series Editor ![]() |
Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0031-8965;1521-396X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | Times cited | 40 | Open Access | ||
Notes | Approved | Most recent IF: NA | |||
Call Number | UA @ lucian @ c:irua:95798 | Serial | 1152 | ||
Permanent link to this record | |||||
Author | Fedina, L.; Gutakovskii, A.; Aseev, A.; van Landuyt, J.; Vanhellemont, J. | ||||
Title | Extended defects formation in Si crystals by clustering of intrinsic point defects studied by in-situ irradiation in an HREM | Type | A1 Journal article | ||
Year | 1999 | Publication | Physica status solidi: A: applied research | Abbreviated Journal | Phys Status Solidi A |
Volume | 171 | Issue | 1 | Pages | 147-157 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | |||||
Address | |||||
Corporate Author | Thesis | ||||
Publisher | Place of Publication | Berlin | Editor | ||
Language | Wos | 000078539700020 | Publication Date | 0000-00-00 | |
Series Editor ![]() |
Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0031-8965 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | Times cited | 40 | Open Access | ||
Notes | Approved | Most recent IF: NA | |||
Call Number | UA @ lucian @ c:irua:29687 | Serial | 1153 | ||
Permanent link to this record | |||||
Author | Milošević, M.V.; Peeters, F.M. | ||||
Title | Field-enhanced critical parameters in magnetically nanostructured superconductors | Type | A1 Journal article | ||
Year | 2005 | Publication | Europhysics letters | Abbreviated Journal | Epl-Europhys Lett |
Volume | 70 | Issue | 5 | Pages | 670-676 |
Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
Abstract | |||||
Address | |||||
Corporate Author | Thesis | ||||
Publisher | Place of Publication | Paris | Editor | ||
Language | Wos | 000229819000016 | Publication Date | 2005-04-28 | |
Series Editor ![]() |
Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0295-5075;1286-4854; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 1.957 | Times cited | 40 | Open Access | |
Notes | Approved | Most recent IF: 1.957; 2005 IF: 2.237 | |||
Call Number | UA @ lucian @ c:irua:57247 | Serial | 1191 | ||
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Author | Silhanek, A.V.; Leo, A.; Grimaldi, G.; Berdiyorov, G.R.; Milošević, M.V.; Nigro, A.; Pace, S.; Verellen, N.; Gillijns, W.; Metlushko, V.; Ilić, B.; Zhu, X.; Moshchalkov, V.V.; | ||||
Title | Influence of artificial pinning on vortex lattice instability in superconducting films | Type | A1 Journal article | ||
Year | 2012 | Publication | New journal of physics | Abbreviated Journal | New J Phys |
Volume | 14 | Issue | Pages | 053006-053006,11 | |
Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
Abstract | In superconducting films under an applied dc current, we analyze experimentally and theoretically the influence of engineered pinning on the vortex velocity at which the flux-flow dissipation undergoes an abrupt transition from low to high resistance. We argue, based on a nonuniform distribution of vortex velocity in the sample, that in strongly disordered systems the mean critical vortex velocity for flux-flow instability (i) has a nonmonotonic dependence on magnetic field and (ii) decreases as the pinning strength is increased. These findings challenge the generally accepted microscopic model of Larkin and Ovchinnikov (1979 J. Low. Temp. Phys. 34 409) and all subsequent refinements of this model which ignore the presence of pinning centers. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Bristol | Editor | ||
Language | Wos | 000304871700003 | Publication Date | 2012-05-04 | |
Series Editor ![]() |
Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1367-2630; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.786 | Times cited | 40 | Open Access | |
Notes | ; This work was supported by the Methusalem Funding of the Flemish Government, the ESF-NES program, the Belgian Science Policy (IAP) and the Fund for Scientific Research-Flanders (FWO-Vlaanderen). AVS, GRB and WG received individual support from FWO-Vlaanderen. GG acknowledges support from the research project L.R. N5 of Regione Campania. VM acknowledges financial support from the US NSF, grant no. ECCS-0823813. We acknowledge J Van de Vondel for a critical reading of the manuscript. ; | Approved | Most recent IF: 3.786; 2012 IF: 4.063 | ||
Call Number | UA @ lucian @ c:irua:98949 | Serial | 1616 | ||
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Author | Snoeckx, R.; Setareh, M.; Aerts, R.; Simon, P.; Maghari, A.; Bogaerts, A. | ||||
Title | Influence of N2 concentration in a CH4/N2 dielectric barrier discharge used for CH4 conversion into H2 | Type | A1 Journal article | ||
Year | 2013 | Publication | International journal of hydrogen energy | Abbreviated Journal | Int J Hydrogen Energ |
Volume | 38 | Issue | 36 | Pages | 16098-16120 |
Keywords | A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
Abstract | We present a combined study of experimental and computational work for a dielectric barrier discharge (DBD) used for CH4 conversion into H2. More specifically, we investigated the influence of N2 as an impurity (150,000 ppm) and as additive gas (199%) on the CH4 conversion and H2 yield. For this purpose, a zero-dimensional chemical kinetics model is applied to study the plasma chemistry. The calculated conversions and yields for various gas mixing ratios are compared to the obtained experimental values, and good agreement is achieved. The study reveals the significance of the View the MathML source and View the MathML source metastable states for the CH4 conversion into H2, based on a kinetic analysis of the reaction chemistry. | ||||
Address | |||||
Corporate Author | Thesis | ||||
Publisher | Place of Publication | Oxford | Editor | ||
Language | Wos | 000327904500027 | Publication Date | 2013-10-23 | |
Series Editor ![]() |
Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0360-3199; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.582 | Times cited | 40 | Open Access | |
Notes | Approved | Most recent IF: 3.582; 2013 IF: 2.930 | |||
Call Number | UA @ lucian @ c:irua:111372 | Serial | 1642 | ||
Permanent link to this record | |||||
Author | Hai, G.-Q.; Studart, N.; Peeters, F.M.; Koenraad, P.M.; Wolter, J.H. | ||||
Title | Intersubband-coupling and screening effects on the electron transport in a quasi-two-dimensional δ-doped semiconductor system | Type | A1 Journal article | ||
Year | 1996 | Publication | Journal of applied physics | Abbreviated Journal | J Appl Phys |
Volume | 80 | Issue | Pages | 5809-5814 | |
Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
Abstract | The effects due to intersubband coupling and screening on the ionized impurity scattering are studied for a quasi-two-dimensional electron system in delta-doped semiconductors. We found that intersubband coupling plays an essential role in describing the screening properties and the effect of ionized impurity scattering on the mobility in a multisubband system. At the onset of the occupation of a higher subband, the screening due to the intersubband coupling leads to a reduction of the small angle scattering rate in the lower subband. We showed that such an effect is significant in a delta-doped quantum well and results in a pronounced increase of the quantum mobility at the onset of the occupation of a higher subband. (C) 1996 American Institute of Physics. | ||||
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Corporate Author | Thesis | ||||
Publisher | American Institute of Physics | Place of Publication | New York, N.Y. | Editor | |
Language | Wos | A1996VU98700039 | Publication Date | 2002-07-26 | |
Series Editor ![]() |
Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0021-8979; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 2.183 | Times cited | 40 | Open Access | |
Notes | Approved | no | |||
Call Number | UA @ lucian @ c:irua:15789 | Serial | 1712 | ||
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Author | Felten, A.; Bittencourt, C.; Colomer, J.-F.; Van Tendeloo, G.; Pireaux, J.-J. | ||||
Title | Nucleation of metal clusters on plasma treated multi wall carbon nanotubes | Type | A1 Journal article | ||
Year | 2007 | Publication | Carbon | Abbreviated Journal | Carbon |
Volume | 45 | Issue | 1 | Pages | 110-116 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | |||||
Address | |||||
Corporate Author | Thesis | ||||
Publisher | Place of Publication | Oxford | Editor | ||
Language | Wos | 000243583300017 | Publication Date | 2006-09-27 | |
Series Editor ![]() |
Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0008-6223; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 6.337 | Times cited | 40 | Open Access | |
Notes | Approved | Most recent IF: 6.337; 2007 IF: 4.260 | |||
Call Number | UA @ lucian @ c:irua:63033 | Serial | 2389 | ||
Permanent link to this record | |||||
Author | Ying, J.; Yang, X.-Y.; Hu, Z.-Y.; Mu, S.-C.; Janiak, C.; Geng, W.; Pan, M.; Ke, X.; Van Tendeloo, G.; Su, B.-L. | ||||
Title | One particle@one cell : highly monodispersed PtPd bimetallic nanoparticles for enhanced oxygen reduction reaction | Type | A1 Journal article | ||
Year | 2014 | Publication | Nano energy | Abbreviated Journal | Nano Energy |
Volume | 8 | Issue | Pages | 214-222 | |
Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
Abstract | Highly monodispersed platinum-based nanoalloys are the best-known catalysts for the oxygen reduction reaction. Although certainly promising, the durability and stability are among the main requirements for commercializing fuel cell electrocatalysts in practical applications. Herein, we synthesize highly stable, durable and catalytic active monodispersed PtPd nano-particles encapsulated in a unique one particle@one cell structure by adjusting the viscosity of solvents using mesocellular foam. PtPd nanoparticles in mesocellular carbon foam exhibit an excellent electrocatalytic activity (over 4 times mass and specific activities than the commercial Pt/C catalyst). Most importantly, this nanocatalyst shows no obvious change of structure and only a 29.5% loss in electrochemically active surface area after 5000 potential sweeps between 0.6 and 1.1 V versus reversible hydrogen electrode cycles. (C) 2014 Elsevier Ltd. All rights reserved. | ||||
Address | |||||
Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000340981700026 | Publication Date | 2014-06-23 | |
Series Editor ![]() |
Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 2211-2855; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 12.343 | Times cited | 40 | Open Access | |
Notes | Approved | Most recent IF: 12.343; 2014 IF: 10.325 | |||
Call Number | UA @ lucian @ c:irua:119255 | Serial | 2465 | ||
Permanent link to this record | |||||
Author | Clem, J.R.; Mawatari, Y.; Berdiyorov, G.R.; Peeters, F.M. | ||||
Title | Predicted field-dependent increase of critical currents in asymmetric superconducting nanocircuits | Type | A1 Journal article | ||
Year | 2012 | Publication | Physical review : B : condensed matter and materials physics | Abbreviated Journal | Phys Rev B |
Volume | 85 | Issue | 14 | Pages | 144511-144511,16 |
Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
Abstract | The critical current of a thin superconducting strip of width W much larger than the Ginzburg-Landau coherence length xi but much smaller than the Pearl length Lambda = 2 lambda(2)/d is maximized when the strip is straight with defect-free edges. When a perpendicular magnetic field is applied to a long straight strip, the critical current initially decreases linearly with H but then decreases more slowly with H when vortices or antivortices are forced into the strip. However, in a superconducting strip containing sharp 90 degrees or 180 degrees turns, the zero-field critical current at H = 0 is reduced because vortices or antivortices are preferentially nucleated at the inner corners of the turns, where current crowding occurs. Using both analytic London-model calculations and time-dependent Ginzburg-Landau simulations, we predict that in such asymmetric strips the resulting critical current can be increased by applying a perpendicular magnetic field that induces a current-density contribution opposing the applied current density at the inner corners. This effect should apply to all turns that bend in the same direction. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000302611100004 | Publication Date | 2012-04-10 | |
Series Editor ![]() |
Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1098-0121;1550-235X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.836 | Times cited | 40 | Open Access | |
Notes | ; This research, supported in part by the US Department of Energy, Office of Basic Energy Science, Division of Materials Sciences and Engineering, was performed in part at the Ames Laboratory, which is operated for the US Department of Energy by Iowa State University under Contract No. DE-AC02-07CH11358. This work also was supported in part by the Flemish Science Foundation (FWO-Vlaanderen) and the Belgian Science Policy (IAP). G.R.B. acknowledges individual support from FWO-Vlaanderen. ; | Approved | Most recent IF: 3.836; 2012 IF: 3.767 | ||
Call Number | UA @ lucian @ c:irua:98263 | Serial | 2695 | ||
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Author | Singh, S.K.; Neek-Amal, M.; Costamagna, S.; Peeters, F.M. | ||||
Title | Rippling, buckling, and melting of single- and multilayer MoS2 | Type | A1 Journal article | ||
Year | 2015 | Publication | Physical Review B | Abbreviated Journal | Phys Rev B |
Volume | 91 | Issue | 91 | Pages | 014101 |
Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
Abstract | Large-scale atomistic simulations using the reactive empirical bond order force field approach is implemented to investigate thermal and mechanical properties of single-layer (SL) and multilayer (ML) molybdenum disulfide (MoS2). The amplitude of the intrinsic ripples of SL MoS2 are found to be smaller than those exhibited by graphene (GE). Furthermore, because of the van der Waals interaction between layers, the out-of-plane thermal fluctuations of ML MoS2 decreases rapidly with increasing number of layers. This trend is confirmed by the buckling transition due to uniaxial stress which occurs for a significantly larger applied tension as compared to graphene. For SL MoS2, the melting temperature is estimated to be 3700 K which occurs through dimerization followed by the formation of small molecules consisting of two to five atoms. When different types of vacancies are inserted in the SL MoS2 it results in a decrease of both the melting temperature as well as the stiffness. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Lancaster, Pa | Editor | ||
Language | Wos | 000347921300001 | Publication Date | 2015-01-05 | |
Series Editor ![]() |
Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1098-0121;1550-235X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.836 | Times cited | 40 | Open Access | |
Notes | ; This work is supported by the ESF-Eurographene project CONGRAN, the Flemish Science Foundation (FWO-VI), and the Methusalem Foundation of the Flemish Government. We acknowledge funding from the FWO (Belgium)-MINCyT (Argentina) collaborative research project. We would like to thanks Prof. Douglas E. Spearot [26] for giving us the implemented parameters of Mo-S in LAMMPS. ; | Approved | Most recent IF: 3.836; 2015 IF: 3.736 | ||
Call Number | c:irua:123834 | Serial | 2909 | ||
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Author | Baguer, N.; Bogaerts, A.; Donko, Z.; Gijbels, R.; Sadeghi, N. | ||||
Title | Study of the Ar metastable atom population in a hollow cathode discharge by means of a hybrid model and spectrometric measurements | Type | A1 Journal article | ||
Year | 2005 | Publication | Journal of applied physics | Abbreviated Journal | J Appl Phys |
Volume | 97 | Issue | Pages | 123305,1-12 | |
Keywords | A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
Abstract | |||||
Address | |||||
Corporate Author | Thesis | ||||
Publisher | American Institute of Physics | Place of Publication | New York, N.Y. | Editor | |
Language | Wos | 000230278100014 | Publication Date | 2005-06-21 | |
Series Editor ![]() |
Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0021-8979; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 2.068 | Times cited | 40 | Open Access | |
Notes | Approved | Most recent IF: 2.068; 2005 IF: 2.498 | |||
Call Number | UA @ lucian @ c:irua:53102 | Serial | 3334 | ||
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Author | Lok, J.G.S.; Geim, A.K.; Maan, J.C.; Marmorkos, I.; Peeters, F.M.; Mori, N.; Eaves, L.; Forster, T.J.; Main, P.C.; Sakai, J.W.; Henini, M. | ||||
Title | D- centers probed by resonant tunneling spectroscopy | Type | A1 Journal article | ||
Year | 1996 | Publication | Physical review : B : condensed matter and materials physics | Abbreviated Journal | Phys Rev B |
Volume | 53 | Issue | Pages | 9554-9557 | |
Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
Abstract | |||||
Address | |||||
Corporate Author | Thesis | ||||
Publisher | Place of Publication | Lancaster, Pa | Editor | ||
Language | Wos | A1996UJ29600016 | Publication Date | 0000-00-00 | |
Series Editor ![]() |
Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1098-0121; 0163-1829 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.736 | Times cited | 40 | Open Access | |
Notes | Approved | PHYSICS, APPLIED 47/145 Q2 # | |||
Call Number | UA @ lucian @ c:irua:15797 | Serial | 3527 | ||
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Author | Chaves, A.; Farias, G.A.; Peeters, F.M.; Szafran, B. | ||||
Title | Wave packet dynamics in semiconductor quantum rings of finite width | Type | A1 Journal article | ||
Year | 2009 | Publication | Physical review : B : solid state | Abbreviated Journal | Phys Rev B |
Volume | 80 | Issue | 12 | Pages | 125331,1-125331,14 |
Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
Abstract | The time evolution of a wave packet injected into a semiconductor quantum ring is investigated in order to obtain the transmission and reflection probabilities. Within the effective-mass approximation, the time-dependent Schrödinger equation is solved for a system with nonzero width of the ring and leads and finite potential-barrier heights, where we include smooth lead-ring connections. In the absence of a magnetic field, an analysis of the projection of the wave function over the different subband states shows that when the injected wave packet is within a single subband, the junction can scatter this wave packet into different subbands but remarkably at the second junction the wave packet is scattered back into the subband state of the incoming wave packet. If a magnetic field is applied perpendicularly to the ring plane, transmission and reflection probabilities exhibit Aharonov-Bohm (AB) oscillations and the outgoing electrons may end up in different subband states from those of the incoming electrons. Localized impurities, placed in the ring arms, influence the AB oscillation period and amplitude. For a single impurity or potential barrier of sufficiently strong strength, the period of the AB oscillations is halved while for two impurities localized in diametrically opposite points of the ring, the original AB period is recovered. A theoretical investigation of the confined states and time evolution of wave packets in T wires is also made, where a comparison between this system and the lead-ring junction is drawn. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Lancaster, Pa | Editor | ||
Language | Wos | 000270383300098 | Publication Date | 2009-09-25 | |
Series Editor ![]() |
Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1098-0121;1550-235X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.836 | Times cited | 40 | Open Access | |
Notes | Approved | Most recent IF: 3.836; 2009 IF: 3.475 | |||
Call Number | UA @ lucian @ c:irua:79231 | Serial | 3906 | ||
Permanent link to this record | |||||
Author | Cui, J.; Faria, M.; Bjornmalm, M.; Ju, Y.; Suma, T.; Gunawan, S.T.; Richardson, J.J.; Heidar, H.; Bals, S.; Crampin, E.J.; Caruso, F. | ||||
Title | A framework to account for sedimentation and diffusion in particle-cell interactions | Type | A1 Journal article | ||
Year | 2016 | Publication | Langmuir: the ACS journal of surfaces and colloids | Abbreviated Journal | Langmuir |
Volume | 32 | Issue | 32 | Pages | 12394-12402 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | In vitro experiments provide a solid basis for understanding the interactions between particles and biological systems. An important confounding variable for these studies is the difference between the amount of particles administered and that which reaches the surface of cells. Here, we engineer a hydrogel-based nanoparticle system and combine in situ characterization techniques, 3D-printed cell cultures, and computational modeling to evaluate and study particle cell interactions of advanced particle systems. The framework presented demonstrates how sedimentation and diffusion can explain differences in particle cell association, and provides a means to account for these effects. Finally, using in silico modeling, we predict the proportion of particles that reaches the cell surface using common experimental conditions for a wide range of inorganic and organic micro- and nanoparticles. This work can assist in the understanding and control of sedimentation and diffusion when investigating cellular interactions of engineered particles. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Washington, D.C. | Editor | ||
Language | Wos | 000389117600017 | Publication Date | 2016-07-06 | |
Series Editor ![]() |
Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0743-7463 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.833 | Times cited | 40 | Open Access | Not_Open_Access |
Notes | ; This work was supported by the Australian Research Council (ARC) under the Australian Laureate Fellowship scheme (F.C., FL120100030), the Australian Government through an Australian Postgraduate Award (M.B.), and the ARC Centre of Excellence in Convergent Bio-Nano Science and Technology (Project Number CE140100036). This work was performed in part at the Materials Characterization and Fabrication Platform (MCFP) at the University of Melbourne and the Victorian Node of the Australian National Fabrication Facility (ANFF). ; | Approved | Most recent IF: 3.833 | ||
Call Number | UA @ lucian @ c:irua:139210 | Serial | 4438 | ||
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Author | Pilehvar, S.; Rather, J.A.; Dardenne, F.; Robbens, J.; Blust, R.; De Wael, K. | ||||
Title | Carbon nanotubes based electrochemical aptasensing platform for the detection of hydroxylated polychlorinated biphenyl in human blood serum | Type | A1 Journal article | ||
Year | 2014 | Publication | Biosensors and bioelectronics | Abbreviated Journal | Biosens Bioelectron |
Volume | 54 | Issue | Pages | 78-84 | |
Keywords | A1 Journal article; Engineering sciences. Technology; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) | ||||
Abstract | A novel strategy to sense target molecules in human blood serum is achieved by immobilizing aptamers (APTs) on multiwalled carbon nanotubes (MWCNT) modified electrodes. In this work, the aminated aptamer selected for hydroxylated polychlorinated biphenyl (OHPCB) was covalently immobilized on the surface of the MWCNTCOOH modified glassy carbon electrode through amide linkage. The aptamers function as recognition probes for OHPCB by the binding induced folding of the aptamer. The developed aptasensing device was characterized by Electrochemical Impedance Spectroscopy (EIS), Atomic Force Microscopy (AFM) and Fourier Transform Infrared Spectroscopy (FTIR). The aptasensor displayed excellent performance for OHPCB detection with a linear range from 0.16 to 7.5 μM. The sensitivity of the developed aptasensing platform is improved (1×10−8 M) compared to the published report (1×10−6 M) for the determination of OH-PCB (Turner et al., 2007). The better performance of the sensor is due to the unique platform, i.e. the presence of APTs onto electrodes and the combination with nanomaterials. The aptamer density on the electrode surface was estimated by chronocoulometry and was found to be 1.4×1013 molecules cm−2. The validity of the method and applicability of the aptasensor was successfully evaluated by the detection of OHPCB in a blood serum sample. The described approach for aptasensing opens up new perspectives in the field of biomonitoring providing a device with acceptable stability, high sensitivity, good accuracy and precision. | ||||
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Publisher | Place of Publication | Editor | |||
Language | Wos | 000333071500012 | Publication Date | 2013-11-01 | |
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Series Volume | Series Issue | Edition | |||
ISSN | 0956-5663 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 7.78 | Times cited | 40 | Open Access | |
Notes | ; We are thankful to UA-DOCPRO and BELSPO for financial support (respectively S. Pilehvar and J. Ahmad Rather). We also thank Prof. A. Covaci (UA) for the kind gift of human blood serum samples. Special thanks to Prof. L Van Vaeck and Y. Vercammen (UA) for AFM imaging and Prof. V. Meynen and M. Kus (LADCA, UA) for performing IR measurements. ; | Approved | Most recent IF: 7.78; 2014 IF: 6.409 | ||
Call Number | UA @ admin @ c:irua:111262 | Serial | 5495 | ||
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Author | Radepont, M.; de Nolf, W.; Janssens, K.; van der Snickt, G.; Coquinot, Y.; Klaassen, L.; Cotte, M. | ||||
Title | The use of microscopic X-ray diffraction for the study of HgS and its degradation products corderoite (\alpha-Hg3S2Cl2), kenhsuite (\gamma-Hg3S2Cl2) and calomel (Hg2Cl2) in historical paintings | Type | A1 Journal article | ||
Year | 2011 | Publication | Journal of analytical atomic spectrometry | Abbreviated Journal | J Anal Atom Spectrom |
Volume | 26 | Issue | 5 | Pages | 959-968 |
Keywords | A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) | ||||
Abstract | Since antiquity, the red pigment mercury sulfide (α-HgS), called cinnabar in its natural form or vermilion red when synthetic, was very often used in frescoes and paintings, even if it was known to suffer occasionally from degradation. The paint hereby acquires a black or silver-grey aspect. The chemical characterization of these alteration products is rather challenging mainly because of the micrometric size and heterogeneity of the surface layers that develop and that are responsible for the color change. Methods such as electron microscopy, synchrotron-based microscopic X-ray fluorescence, microscopic X-ray absorption near edge spectroscopy, Raman microscopy and secondary ion microscopy have been previously employed to identify the (Hg- and S-) compounds present and to study their co-localization. Next to these, also microscopic X-ray diffraction (XRD) (either by making use of laboratory X-ray sources or when used at a synchrotron facility) allows the identification of the crystal phases that are present in degraded HgS paint layers. In this paper we employ these various forms of micro-XRD to analyze degraded red paint in different paintings and compare the results with other X-ray based methods. Whereas the elemental analyses of the degradation products revealed, next to mercury and sulfur, the presence of chlorine, X-ray diffraction allowed the identification, next to α-HgS, of the Hg and S-containing compound calomel (Hg2Cl2) but also of the Hg, S and Cl-containing minerals corderoite (α-Hg3S2Cl2) and kenhsuite (γ-Hg3S2Cl2). These observations are consistent with X-ray absorption spectroscopy measurements performed at the S- and Cl-edges. | ||||
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Publisher | Place of Publication | Editor | |||
Language | Wos | 000289731900011 | Publication Date | 2011-03-03 | |
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Series Volume | Series Issue | Edition | |||
ISSN | 0267-9477 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 3.379 | Times cited | 40 | Open Access | |
Notes | ; The authors gratefully acknowledge GOA programme “XANES meets EELS'' (University of Antwerp Research Council), the IUAP VI/P16 programme ”Nacho'' (BELSPO, Brussels, Belgium) and FWO (Brussels, Belgium) projects no. G.0689.06, G.0704.08 and G017909N for financial support, the ESRF for granting beamtime under proposals no. EC442 and EC720, and Gema Martinez-Criado for practical help on ID18F. The KMSKA staff is also gratefully acknowledged for their help and interest. Javier Chillida is thanked for providing us with the Pedralbes samples. The authors are also indebted to the CHARISMA project (grant agreement 228330) for financial support. ; | Approved | Most recent IF: 3.379; 2011 IF: 3.220 | ||
Call Number | UA @ admin @ c:irua:89927 | Serial | 5896 | ||
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