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| Author | Lao, M.; Eisterer, M.; Stadel, O.; Meledin, A.; Van Tendeloo, G. | ||||
| Title | The effect of Y2O3 and YFeO3 additions on the critical current density of YBCO coated conductors | Type | P1 Proceeding | ||
| Year | 2014 | Publication | 1-4 | Abbreviated Journal  |
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| Volume | Issue | Pages | |||
| Keywords | P1 Proceeding; Electron microscopy for materials research (EMAT) | ||||
| Abstract | The pinning mechanism of MOCVD-grown YBCO coated conductors with Y2O3 precipitates was investigated by angle-resolved transport measurement of Je in a wide range of temperature and magnetic fields. Aside from the Y2O3 nanoprecipitates, a-axis grains and threading dislocation along the c-axis were found in the YBCO layer. The Y2O3 precipitates are less effective pinning centers at lower temperature. The tapes with precipitates show a higher anisotropy with larger J(c) at H parallel to ab than H parallel to c. This behavior was attributed to the preferred alignment of the nanoprecipitates along the ab-plane. | ||||
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| Publisher | Iop publishing ltd | Place of Publication | Bristol | Editor | |
| Language | Wos | 000350818300068 | Publication Date | 2014-05-12 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | 507 | Series Issue | Edition | ||
| ISSN | 1742-6596; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | Times cited | 1 | Open Access | ||
| Notes | eurotapes | Approved | Most recent IF: NA | ||
| Call Number | UA @ lucian @ c:irua:125444 | Serial | 3577 | ||
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| Author | Singh, S.K. | ||||
| Title | Vibrational properties of graphene nano-flakes and thermo-mechanical properties of graphene-like materials | Type | Doctoral thesis | ||
| Year | 2014 | Publication | Abbreviated Journal |
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| Volume | Issue | Pages | |||
| Keywords | Doctoral thesis; Condensed Matter Theory (CMT) | ||||
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| Publisher | Place of Publication | Antwerpen | Editor | ||
| Language | Wos | Publication Date | 0000-00-00 | ||
| Series Editor | Series Title | Abbreviated Series Title | |||
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| ISSN | ISBN | Additional Links | UA library record | ||
| Impact Factor | Times cited | Open Access | |||
| Notes | Approved | Most recent IF: NA | |||
| Call Number | UA @ lucian @ c:irua:116622 | Serial | 3845 | ||
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| Author | Kalesaki, E.; Boneschanscher, M.P.; Geuchies, J.J.; Delerue, C.; Morais Smith, C.; Evers, W.H.; Allan, G.; Altantzis, T.; Bals, S.; Vanmaekelbergh, D. | ||||
| Title | Preparation and study of 2-D semiconductors with Dirac type bands due to the honeycomb nanogeometry | Type | P1 Proceeding | ||
| Year | 2014 | Publication | Proceedings of the Society of Photo-optical Instrumentation Engineers T2 – Proceedings of SPIE | Abbreviated Journal |
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| Volume | 8981 | Issue | Pages | 898107-898107 | |
| Keywords | P1 Proceeding; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | The interest in 2-dimensional systems with a honeycomb lattice and related Dirac-type electronic bands has exceeded the prototype graphene1. Currently, 2-dimensional atomic2,3 and nanoscale4-8 systems are extensively investigated in the search for materials with novel electronic properties that can be tailored by geometry. The immediate question that arises is how to fabricate 2-D semiconductors that have a honeycomb nanogeometry, and as a consequence of that, display a Dirac-type band structure? Here, we show that atomically coherent honeycomb superlattices of rocksalt (PbSe, PbTe) and zincblende (CdSe, CdTe) semiconductors can be obtained by nanocrystal self-assembly and facet-to-facet atomic bonding, and subsequent cation exchange. We present a extended structural analysis of atomically coherent 2-D honeycomb structures that were recently obtained with self-assembly and facet-to-facet bonding9. We show that this process may in principle lead to three different types of honeycomb structures, one with a graphene type-, and two others with a silicene-type structure. Using TEM, electron diffraction, STM and GISAXS it is convincingly shown that the structures are from the silicene-type. In the second part of this work, we describe the electronic structure of graphene-type and silicene type honeycomb semiconductors. We present the results of advanced electronic structure calculations using the sp3d5s* atomistic tight-binding method10. For simplicity, we focus on semiconductors with a simple and single conduction band for the native bulk semiconductor. When the 3-D geometry is changed into 2-D honeycomb, a conduction band structure transformation to two types of Dirac cones, one for S- and one for P-orbitals, is observed. The width of the bands depends on the honeycomb period and the coupling between the nanocrystals. Furthermore, there is a dispersionless P-orbital band, which also forms a landmark of the honeycomb structure. The effects of considerable intrinsic spin-orbit coupling are briefly considered. For heavy-element compounds such as CdTe, strong intrinsic spin-‐orbit coupling opens a non-trivial gap at the P-orbital Dirac point, leading to a quantum Spin Hall effect10-12. Our work shows that well known semiconductor crystals, known for centuries, can lead to systems with entirely new electronic properties, by the simple action of nanogeometry. It can be foreseen that such structures will play a key role in future opto-electronic applications, provided that they can be fabricated in a straightforward way. | ||||
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| Language | Wos | 000336040600004 | Publication Date | 2014-03-07 | |
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| ISSN | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | ||
| Impact Factor | Times cited | 2 | Open Access | OpenAccess | |
| Notes | This work has been supported by funding of the French National Research Agency [ANR, (ANR-‐09-‐BLAN-‐0421-‐01)], NWO and the Dutch organization FOM [Programs “Control over Functional Nanoparticle Solids” (FNPS) and “Designing Dirac Carriers in Semiconductors” | Approved | Most recent IF: NA | ||
| Call Number | c:irua:131912 | Serial | 4039 | ||
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| Author | Neyts, E. | ||||
| Title | Algemene chemie : van atomen tot thermodynamica | Type | MA2 Book as author | ||
| Year | 2014 | Publication | Abbreviated Journal |
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| Volume | Issue | Pages | 317 p. | ||
| Keywords | MA2 Book as author; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
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| Publisher | Acco | Place of Publication | Leuven | Editor | |
| Language | Wos | Publication Date | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
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| ISSN | ISBN | 978-90-334-9628-8 | Additional Links | UA library record | |
| Impact Factor | Times cited | Open Access | |||
| Notes | Approved | Most recent IF: NA | |||
| Call Number | UA @ lucian @ c:irua:128094 | Serial | 4514 | ||
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| Author | N. Gauquelin, D. G. Hawthorn, G. A. Sawatzky, R. X. Liang, D. A. Bonn, W. N. Hardy & G.A. Botton | ||||
| Title | Atomic scale real-space mapping of holes in YBa2Cu3O6+δ | Type | A1 Journal Article | ||
| Year | 2014 | Publication | Nature Communications | Abbreviated Journal |
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| Volume | 5 | Issue | Pages | 4275 | |
| Keywords | A1 Journal Article; Electron Microscopy for Materials Science (EMAT) ; | ||||
| Abstract | The high-temperature superconductor YBa2Cu3O6+δ consists of two main structural units—a bilayer of CuO2 planes that are central to superconductivity and a CuO2+δ chain layer. Although the functional role of the planes and chains has long been established, most probes integrate over both, which makes it difficult to distinguish the contribution of each. Here we use electron energy loss spectroscopy to directly resolve the plane and chain contributions to the electronic structure in YBa2Cu3O6 and YBa2Cu3O7. We directly probe the charge transfer of holes from the chains to the planes as a function of oxygen content, and show that the change in orbital occupation of Cu is large in the chain layer but modest in CuO2 planes, with holes in the planes doped primarily into the O 2p states. These results provide direct insight into the local electronic structure and charge transfers in this important high-temperature superconductor. | ||||
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| Language | Wos | 000340615100002 | Publication Date | 2014-07-16 | |
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| Impact Factor | Times cited | 22 | Open Access | ||
| Notes | Approved | Most recent IF: NA | |||
| Call Number | EMAT @ emat @ | Serial | 4542 | ||
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| Author | N. Gauquelin, E. Benckiser, M. K. Kinyanjui, M. Wu, Y. Lu, G. Christiani, G. Logvenov, H.-U. Habermeier, U. Kaiser, B. Keimer, and G. A. Botton | ||||
| Title | Atomically resolved EELS mapping of the interfacial structure of epitaxially strained LaNiO3/LaAlO3 superlattices | Type | A1 Journal Article | ||
| Year | 2014 | Publication | Physical Review B | Abbreviated Journal |
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| Volume | 90 | Issue | Pages | 195140 | |
| Keywords | A1 Journal Article; Electron Microscopy for Materials Science (EMAT) ; | ||||
| Abstract | The interfacial atomic structure of a metallic LaNiO3/LaAlO3 superlattice grown on a LaSrAlO4 substrate was investigated using a combination of atomically resolved electron energy loss spectroscopy (EELS) at the Al K, Al L2,3, Sr L2,3, Ni L2,3, La M4,5, and O K edges as well as hybridization mapping of selected features of the O K-edge fine structure.We observe an additional La1−xSrxAl1−yNiyO3 layer at the substrate-superlattice interface, possibly linked to diffusion of Al and Sr into the growing film or a surface reconstruction due to Sr segregation. The roughness of the LaNiO3/LaAlO3 interfaces is found to be on average around one pseudocubic unit cell. The O K-edge EELS spectra revealed reduced spectral weight of the prepeak derived from Ni-O hybridized states in the LaNiO3 layers. We rule out oxygen nonstoichiometry of the LaNiO3 layers and discuss changes in the Ni-O hybridization due to heterostructuring as possible origin. |
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| Language | Wos | 000345467000003 | Publication Date | 2014-11-20 | |
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| Impact Factor | Times cited | 17 | Open Access | ||
| Notes | Approved | Most recent IF: NA | |||
| Call Number | EMAT @ emat @ | Serial | 4544 | ||
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| Author | M. K. Kinyanjui, N. Gauquelin, E. Benckiser, H. –U. Habermeier, B. Keimer, U. Kaiser and G.A. Botton | ||||
| Title | Local lattice distortion and anisotropic modulation in Epitaxially Strained LaNiO3/LaAlO3 hetero-structures | Type | A1 Journal Article | ||
| Year | 2014 | Publication | Applied Physics Letters | Abbreviated Journal |
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| Volume | 104 | Issue | Pages | 221909 | |
| Keywords | A1 Journal Article; Electron Microscopy for Materials Science (EMAT) ; | ||||
| Abstract | Using a complementary combination of x-ray diffraction and atomically resolved imaging we investigated the lattice structure of epitaxial LaNiO3/LaAlO3 superlattices grown on a compressive-strain inducing LaSrAlO4 (001) substrate. A refinement of the structure obtained from the x-ray data revealed the monoclinic I 2/c 1 1 space group. The (Ni/Al)O6 octahedral rotation angle perpendicular to the superlattice plane is enhanced, and the one parallel to the plane is reduced with respect to the corresponding bulk values. High-angle annular dark field imaging was used to determine the lattice parameters within the superlattice unit cell. High-resolution electron microscopy images of the oxygen atoms are consistent with the x-ray results. | ||||
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| Language | Wos | 000337161700029 | Publication Date | 2014-06-07 | |
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| Impact Factor | Times cited | 22 | Open Access | ||
| Notes | Approved | Most recent IF: NA | |||
| Call Number | EMAT @ emat @ | Serial | 4545 | ||
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| Author | Scalise, E.; Houssa, M.; Cinquanta, E.; Grazianetti, C.; van den Broek, B.; Pourtois, G.; Stesmans, A.; Fanciulli, M.; Molle, A. | ||||
| Title | Engineering the electronic properties of silicene by tuning the composition of MoX2 and GaX (X = S,Se,Te) chalchogenide templates | Type | A1 Journal article | ||
| Year | 2014 | Publication | 2D materials | Abbreviated Journal |
2D Mater |
| Volume | 1 | Issue | 1 | Pages | 011010 |
| Keywords | A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | By using first-principles simulations, we investigate the interaction of a 2D silicon layer with two classes of chalcogenide-layered compounds, namely MoX2 and GaX (X = S, Se, Te). A rather weak (van der Waals) interaction between the silicene layers and the chalcogenide layers is predicted. We found that the buckling of the silicene layer is correlated to the lattice mismatch between the silicene layer and the MoX2 or GaX template. The electronic properties of silicene on these different templates largely depend on the buckling of the silicene layer: highly buckled silicene on MoS2 is predicted to be metallic, while low buckled silicene on GaS and GaSe is predicted to be semi-metallic, with preserved Dirac cones at the K points. These results indicate new routes for artificially engineering silicene nanosheets, providing tailored electronic properties of this 2D layer on non-metallic substrates. These non-metallic templates also open the way to the possible integration of silicene in future nanoelectronic devices. | ||||
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| Publisher | IOP Publishing | Place of Publication | Bristol | Editor | |
| Language | Wos | 000353649900011 | Publication Date | 2014-05-29 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2053-1583; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 6.937 | Times cited | 49 | Open Access | |
| Notes | Approved | Most recent IF: 6.937; 2014 IF: NA | |||
| Call Number | UA @ lucian @ c:irua:126032 | Serial | 1048 | ||
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| Author | van den Broek, B.; Houssa, M.; Scalise, E.; Pourtois, G.; Afanas'ev, V.V.; Stesmans, A. | ||||
| Title | Two-dimensional hexagonal tin : ab initio geometry, stability, electronic structure and functionalization | Type | A1 Journal article | ||
| Year | 2014 | Publication | 2D materials | Abbreviated Journal |
2D Mater |
| Volume | 1 | Issue | Pages | 021004 | |
| Keywords | A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | We study the structural, mechanical and electronic properties of the two-dimensional (2D) allotrope of tin: tinene/stanene using first-principles calculation within density functional theory, implemented in a set of computer codes. Continuing the trend of the group-IV 2D materials graphene, silicene and germanene; tinene is predicted to have a honeycomb lattice with lattice parameter of a(0) = 4.62 angstrom and a buckling of d(0) = 0.92 angstrom. The electronic dispersion shows a Dirac cone with zero gap at the Fermi energy and a Fermi velocity of v(F) = 0.97 x 10(6) m s(-1); including spin-orbit coupling yields a bandgap of 0.10 eV. The monolayer is thermally stable up to 700 K, as indicated by first-principles molecular dynamics, and has a phonon dispersion without imaginary frequencies. We explore applied electric field and applied strain as functionalization mechanisms. Combining these two mechanisms allows for an induced bandgap up to 0.21 eV, whilst retaining the linear dispersion, albeit with degraded electronic transport parameters. | ||||
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| Publisher | IOP Publishing | Place of Publication | Bristol | Editor | |
| Language | Wos | 000353650400004 | Publication Date | 2014-08-27 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2053-1583 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 6.937 | Times cited | 58 | Open Access | |
| Notes | Approved | Most recent IF: 6.937; 2014 IF: NA | |||
| Call Number | UA @ lucian @ c:irua:134432 | Serial | 4530 | ||
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| Author | Li, D.Y.; Zeng, Y.J.; Batuk, D.; Pereira, L.M.C.; Ye, Z.Z.; Fleischmann, C.; Menghini, M.; Nikitenko, S.; Hadermann, J.; Temst, K.; Vantomme, A.; Van Bael, M.J.; Locquet, J.P.; Van Haesendonck, C.; | ||||
| Title | Relaxor ferroelectricity and magnetoelectric coupling in ZnOCo nanocomposite thin films : beyond multiferroic composites | Type | A1 Journal article | ||
| Year | 2014 | Publication | ACS applied materials and interfaces | Abbreviated Journal |
Acs Appl Mater Inter |
| Volume | 6 | Issue | 7 | Pages | 4737-4742 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | ZnOCo nanocomposite thin films are synthesized by combination of pulsed laser deposition of ZnO and Co ion implantation. Both superparamagnetism and relaxor ferroelectricity as well as magnetoelectric coupling in the nanocomposites have been demonstrated. The unexpected relaxor ferroelectricity is believed to be the result of the local lattice distortion induced by the incorporation of the Co nanoparticles. Magnetoelectric coupling can be attributed to the interaction between the electric dipole moments and the magnetic moments, which are both induced by the incorporation of Co. The introduced ZnOCo nanocomposite thin films are different from conventional strain-mediated multiferroic composites. | ||||
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| Language | Wos | 000334572800018 | Publication Date | 2014-03-05 | |
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| ISSN | 1944-8244;1944-8252; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 7.504 | Times cited | 21 | Open Access | |
| Notes | Approved | Most recent IF: 7.504; 2014 IF: 6.723 | |||
| Call Number | UA @ lucian @ c:irua:117063 | Serial | 2864 | ||
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| Author | Benito, P.; de Nolf, W.; Nuyts, G.; Janssens, K.; et al. | ||||
| Title | Role of coating-metallic support interaction in the properties of electrosynthesized Rh-based structured catalysts | Type | A1 Journal article | ||
| Year | 2014 | Publication | ACS catalysis | Abbreviated Journal |
Acs Catal |
| Volume | 4 | Issue | 10 | Pages | 3779-3790 |
| Keywords | A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) | ||||
| Abstract | Rh-structured catalysts for the catalytic partial oxidation of CH4 to syngas were prepared by electrosynthesis of Rh-containing hydrotalcite-type (HT) compounds on FeCrAlloy foams followed by calcination at 900 degrees C. During the calcination the simultaneous decomposition of the layered HT structure and formation of the protective FeCrAlloy outer shell in alumina occurred. Here, we studied the role of the coating-metallic support interaction in the properties of the catalysts after calcination, H-2 reduction, and catalytic tests, by a combination of electron (FEG-SEM/EDS) and synchrotron X-ray (XRF/XRPD and XRF/XANES) microscopic techniques. The characterization of crystalline phases in the metallic support and coating and distribution of Rh active species was carried out on several samples prepared by modifying the Rh content in the electrolytic solution (Rh/Mg/Al = 11.0/70.0/19.0, 5.0/70.0/25.0, 0/70.0/30.0 atomic ratio). A sample was also prepared with no aluminum in the electrolytic solution (Rh/Mg/Al = 13.6/86.4/0.0 atomic ratio) and calcined at 550 and 900 degrees C. The interaction between the elements of the metallic support and the catalytic coating increased the film adhesion during the thermal treatment and catalytic tests and modified the catalyst crystalline phases. A chemical reaction between Al corning from the foam and Mg in the coating occurred during calcination at high temperature leading to the formation of spinel phases in which rhodium is solved, together with some Rh2O3 and Rh. The metallic support was oxidized forming the corundum scale and chromium oxides, moreover t-Al2O3 was identified. For the Rh11.0Mg70.0Al19.0 catalyst the inclusion of Rh in the spinel phase decreased its reducibility in the H-2 pretreatment. The reduction continued during catalytic tests by feeding diluted CH4/O-2/He gas mixtures, evidenced by the catalyst activation. While under concentrated gas mixtures the deactivation occurred, probably by oxidation. | ||||
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| Language | Wos | 000345735200053 | Publication Date | 2014-09-24 | |
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| ISSN | 2155-5435 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 10.614 | Times cited | 13 | Open Access | |
| Notes | ; The authors thank the scientists who assisted during the conducted experiments: D. Grolimund and C. N. Borca for the mu XRF/XRPD experiments performed at MicroXAS Beamline of SLS, M. Janousch for the mu XRF/XANES experiments at Phoenix Beamline of the SLS, M. Salome for the mu XRE/XANES experiments at ID21 Beamline of the ESRF, and I. Guerra for the FEG-SEM/EDS experiments at Granada University. Thanks must go to Porvair for supplying FeCrAlloy foams. The financial support from the Ministero per l'Istruzione, l'Universita e la Ricerca (MIUR, Roma, I) is gratefully acknowledged. ; | Approved | Most recent IF: 10.614; 2014 IF: 9.312 | ||
| Call Number | UA @ admin @ c:irua:122215 | Serial | 5820 | ||
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| Author | Kundu, P.; Turner, S.; Van Aert, S.; Ravishankar, N.; Van Tendeloo, G. | ||||
| Title | Atomic structure of quantum gold nanowires : quantification of the lattice strain | Type | A1 Journal article | ||
| Year | 2014 | Publication | ACS nano | Abbreviated Journal |
Acs Nano |
| Volume | 8 | Issue | 1 | Pages | 599-606 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Theoretical studies exist to compute the atomic arrangement in gold nanowires and the influence on their electronic behavior with decreasing diameter. Experimental studies, e.g., by transmission electron microscopy, on chemically synthesized ultrafine wires are however lacking owing to the unavailability of suitable protocols for sample preparation and the stability of the wires under electron beam irradiation. In this work, we present an atomic scale structural investigation on quantum single crystalline gold nanowires of 2 nm diameter, chemically prepared on a carbon film grid. Using low dose aberration-corrected high resolution (S)TEM, we observe an inhomogeneous strain distribution in the crystal, largely concentrated at the twin boundaries and the surface along with the presence of facets and surface steps leading to a noncircular cross section of the wires. These structural aspects are critical inputs needed to determine their unique electronic character and their potential as a suitable catalyst material. Furthermore, electron-beam-induced structural changes at the atomic scale, having implications on their mechanical behavior and their suitability as interconnects, are discussed. | ||||
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| Language | Wos | 000330542900061 | Publication Date | 2013-11-29 | |
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| ISSN | 1936-0851;1936-086X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 13.942 | Times cited | 20 | Open Access | |
| Notes | FWO; Countatoms; Hercules | Approved | Most recent IF: 13.942; 2014 IF: 12.881 | ||
| Call Number | UA @ lucian @ c:irua:113856 | Serial | 199 | ||
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| Author | Xu, X.; Vereecke, G.; Chen, C.; Pourtois, G.; Armini, S.; Verellen, N.; Tsai, W.K.; Kim, D.W.; Lee, E.; Lin, C.Y.; Van Dorpe, P.; Struyf, H.; Holsteyns, F.; Moshchalkov, V.; Indekeu, J.; De Gendt, S.; | ||||
| Title | Capturing wetting states in nanopatterned silicon | Type | A1 Journal article | ||
| Year | 2014 | Publication | ACS nano | Abbreviated Journal |
Acs Nano |
| Volume | 8 | Issue | 1 | Pages | 885-893 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | Spectacular progress in developing advanced Si circuits with reduced size, along the track of Moore's law, has been relying on necessary developments in wet cleaning of nanopatterned Si wafers to provide contaminant free surfaces. The most efficient cleaning is achieved when complete wetting can be realized. In this work, ordered arrays of silicon nanopillars on a hitherto unexplored small scale have been used to study the wetting behavior on nanomodulated surfaces in a substantial range of surface treatments and geometrical parameters. With the use of optical reflectance measurements, the nanoscale water imbibition depths have been measured and the transition to the superhydrophobic Cassie-Baxter state has been accurately determined. For pillars of high aspect ratio (about 15), the transition occurs even when the surface is grafted with a hydrophilic functional group. We have found a striking consistent deviation between the contact angle measurements and the straightforward application of the classical wetting models. Molecular dynamics simulations show that these deviations can be attributed to the long overlooked atomic-scale surface perturbations that are introduced during the nanofabrication process. When the transition condition is approached, transient states of partial imbibition that characterize intermediate states between the Wenzel and Cassie-Baxter states are revealed in our experiments. | ||||
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| Language | Wos | 000330542900092 | Publication Date | 2013-12-31 | |
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| ISSN | 1936-0851;1936-086X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 13.942 | Times cited | 39 | Open Access | |
| Notes | Approved | Most recent IF: 13.942; 2014 IF: 12.881 | |||
| Call Number | UA @ lucian @ c:irua:114871 | Serial | 276 | ||
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| Author | Walter, A.L.; Sahin, H.; Jeon, K.J.; Bostwick, A.; Horzum, S.; Koch, R.; Speck, F.; Ostler, M.; Nagel, P.; Merz, M.; Schupler, S.; Moreschini, L.; Chang, Y.J.; Seyller, T.; Peeters, F.M.; Horn, K.; Rotenberg, E.; | ||||
| Title | Luminescence, patterned metallic regions, and photon-mediated electronic changes in single-sided fluorinated graphene sheets | Type | A1 Journal article | ||
| Year | 2014 | Publication | ACS nano | Abbreviated Journal |
Acs Nano |
| Volume | 8 | Issue | 8 | Pages | 7801-7808 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) | ||||
| Abstract | Single-sided fluorination has been predicted to open an electronic band gap in graphene and to exhibit unique electronic and magnetic properties; however, this has not been substantiated by experimental reports. Our comprehensive experimental and theoretical study of this material on a SiC(0001) substrate shows that single-sided fluorographene exhibits two phases, a stable one with a band gap of similar to 6 eV and a metastable one, induced by UV irradiation, with a band gap of similar to 2.5 eV. The metastable structure, which reverts to the stable “ground-state” phase upon annealing under emission of blue light, in our view is induced by defect states, based on the observation of a nondispersive electronic state at the top of the valence band, not unlike that found in organic molecular layers. Our structural data show that the stable C2F ground state has a “boat” structure, in agreement with our X-ray magnetic circular dichroism data, which show the absence of an ordered magnetic phase. A high flux of UV or X-ray photons removes the fluorine atoms, demonstrating the possibility of lithographically patterning conducting regions into an otherwise semiconducting 2D material. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000340992300025 | Publication Date | 2014-08-09 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1936-0851;1936-086X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 13.942 | Times cited | 23 | Open Access | |
| Notes | Approved | Most recent IF: 13.942; 2014 IF: 12.881 | |||
| Call Number | UA @ lucian @ c:irua:119263 | Serial | 1857 | ||
| Permanent link to this record | |||||
| Author | El-Gogary, R.I.; Rubio, N.; Wang, J.T.W.; Al-Jamal, W.T.; Bourgognon, M.; Kafa, H.; Naeem, M.; Klippstein, R.; Abbate, V.; Leroux, F.; Bals, S.; Van Tendeloo, G.; Kamel, A.O.; Awad, G.A.S.; Mortada, N.D.; Al-Jamal, K.T.; | ||||
| Title | Polyethylene glycol conjugated polymeric nanocapsules for targeted delivery of quercetin to folate-expressing cancer cells in vitro and in vivo | Type | A1 Journal article | ||
| Year | 2014 | Publication | ACS nano | Abbreviated Journal |
Acs Nano |
| Volume | 8 | Issue | 2 | Pages | 1384-1401 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | In this work we describe the formulation and characterization of chemically modified polymeric nanocapsules incorporating the anticancer drug, quercetin, for the passive and active targeting to tumors. Folic acid was conjugated to poly(lactide-co-glycolide) (PLGA) polymer to facilitate active targeting to cancer cells. Two different methods for the conjugation of PLGA to folic acid were employed utilizing polyethylene glycol (PEG) as a spacer. Characterization of the conjugates was performed using FTIR and H-1 NMR studies. The PEG and folk acid content was independent of the conjugation methodology employed. PEGylation has shown to reduce the size of the nanocapsule; moreover, zeta-potential was shown to be polymer-type dependent. Comparative studies on the cytotoxicity and cellular uptake of the different formulations by He La cells, in the presence and absence of excess folic acid, were carried out using MTT assay and Confocal Laser Scanning Microscopy, respectively. Both results confirmed the selective uptake and cytotoxicity of the folic acid targeted nanocapsules to the folate enriched cancer cells in a folate-dependent manner. Finally, the passive tumor accumulation and the active targeting of the nanocapsules to folate-expressing cells were confirmed upon intravenous administration in He La or IGROV-1 tumor-bearing mice. The developed nanocapsules provide a system for targeted delivery of a range of hydrophobic anticancer drugs in vivo. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000332059200032 | Publication Date | 2014-01-07 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1936-0851;1936-086X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 13.942 | Times cited | 144 | Open Access | Not_Open_Access |
| Notes | 290023 Raddel; 262348 Esmi; Iap-Pai | Approved | Most recent IF: 13.942; 2014 IF: 12.881 | ||
| Call Number | UA @ lucian @ c:irua:115862 | Serial | 2670 | ||
| Permanent link to this record | |||||
| Author | Galván-Moya, J.E.; Altantzis, T.; Nelissen, K.; Peeters, F.M.; Grzelczak, M.; Liz-Marán, L.M.; Bals, S.; Van Tendeloo, G. | ||||
| Title | Self-organization of highly symmetric nanoassemblies : a matter of competition | Type | A1 Journal article | ||
| Year | 2014 | Publication | ACS nano | Abbreviated Journal |
Acs Nano |
| Volume | 8 | Issue | 4 | Pages | 3869-3875 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT); Condensed Matter Theory (CMT) | ||||
| Abstract | The properties and applications of metallic nanoparticles are inseparably connected not only to their detailed morphology and composition but also to their structural configuration and mutual interactions. As a result, the assemblies often have superior properties as compared to individual nanoparticles. Although it has been reported that nanoparticles can form highly symmetric clusters, if the configuration can be predicted as a function of the synthesis parameters, more targeted and accurate synthesis will be possible. We present here a theoretical model that accurately predicts the structure and configuration of self-assembled gold nanoclusters. The validity of the model is verified using quantitative experimental data extracted from electron tomography 3D reconstructions of different assemblies. The present theoretical model is generic and can in principle be used for different types of nanoparticles, providing a very wide window of potential applications. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000334990600084 | Publication Date | 2014-03-13 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1936-0851;1936-086X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 13.942 | Times cited | 34 | Open Access | OpenAccess |
| Notes | FWO; Methusalem; 246791 COUNTATOMS; 335078 COLOURATOM; 262348 ESMI; ECAS_Sara; (ROMEO:white; preprint:; postprint:restricted 12 months embargo; pdfversion:cannot); | Approved | Most recent IF: 13.942; 2014 IF: 12.881 | ||
| Call Number | UA @ lucian @ c:irua:116955 | Serial | 2977 | ||
| Permanent link to this record | |||||
| Author | Xu, P.; Dong, L.; Neek-Amal, M.; Ackerman, M.L.; Yu, J.; Barber, S.D.; Schoelz, J.K.; Qi, D.; Xu, F.; Thibado, P.M.; Peeters, F.M.; | ||||
| Title | Self-organized platinum nanoparticles on freestanding graphene | Type | A1 Journal article | ||
| Year | 2014 | Publication | ACS nano | Abbreviated Journal |
Acs Nano |
| Volume | 8 | Issue | 3 | Pages | 2697-2703 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) | ||||
| Abstract | Freestanding graphene membranes were successfully functionalized with platinum nanoparticles (Pt NPs). High-resolution transmission electron microscopy revealed a homogeneous distribution of single-crystal Pt NPs that tend to exhibit a preferred orientation. Unexpectedly, the NPs were also found to be partially exposed to the vacuum with the top Pt surface raised above the graphene substrate, as deduced from atomic-scale scanning tunneling microscopy images and detailed molecular dynamics simulations. Local strain accumulation during the growth process is thought to be the origin of the NP self-organization. These findings are expected to shape future approaches in developing Pt NP catalysts for fuel cells as well as NP-functionalized graphene-based high-performance electronics. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000333539400085 | Publication Date | 2014-02-05 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1936-0851;1936-086X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 13.942 | Times cited | 38 | Open Access | |
| Notes | ; M.N.A. acknowledges financial support by the EU-Marie Curie IIF postdoc Fellowship/299855. F.M.P. acknowledges financial support by the ESF-EuroGRAPHENE project CONGRAN, the Flemish Science Foundation (FWO-VI), and the Methusalem Foundation of the Flemish Government. L.D. acknowledges financial support by the Taishan Overseas Scholar program (tshw20091005), the International Science & Technology Cooperation Program of China (2014DFA60150), the National Natural Science Foundation of China (51172113), the Shandong Natural Science Foundation (JQ201118), the Qingdao Municipal Science and Technology Commission (12-1-4-136-hz), and the National Science Foundation (DMR-0821159). P.M.T. is thankful for the financial support of the Office of Naval Research under Grant No. N00014-10-1-0181 and the National Science Foundation under Grant No. DMR-0855358. ; | Approved | Most recent IF: 13.942; 2014 IF: 12.881 | ||
| Call Number | UA @ lucian @ c:irua:116881 | Serial | 2978 | ||
| Permanent link to this record | |||||
| Author | Goris, B.; Turner, S.; Bals, S.; Van Tendeloo, G. | ||||
| Title | Three-dimensional valency mapping in ceria nanocrystals | Type | A1 Journal article | ||
| Year | 2014 | Publication | ACS nano | Abbreviated Journal |
Acs Nano |
| Volume | 8 | Issue | 10 | Pages | 10878-10884 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Using electron tomography combined with electron energy loss spectroscopy (EELS), we are able to map the valency of the Ce ions in CeO2-x nanocrystals in three dimensions. Our results show a clear facet-dependent reduction shell at the surface of ceria nanoparticles; {111} surface facets show a low surface reduction, whereas at {001} surface facets, the cerium ions are more likely to be reduced over a larger surface shell. Our generic tomographic technique allows a full 3D data cube to be reconstructed, containing an EELS spectrum in each voxel. This possibility enables a three-dimensional investigation of a plethora of material-specific physical properties such as valency, chemical composition, oxygen coordination, or bond lengths, triggering the synthesis of nanomaterials with improved properties. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000343952600126 | Publication Date | 2014-10-06 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1936-0851;1936-086X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 13.942 | Times cited | 85 | Open Access | OpenAccess |
| Notes | 335078 Colouratom; 246791 Countatoms; Fwo; 312483 Esteem2; esteem2jra4; ECASSara; (ROMEO:white; preprint:; postprint:restricted 12 months embargo; pdfversion:cannot); | Approved | Most recent IF: 13.942; 2014 IF: 12.881 | ||
| Call Number | UA @ lucian @ c:irua:121219 | Serial | 3656 | ||
| Permanent link to this record | |||||
| Author | Heyer, S.; Janssen, W.; Turner, S.; Lu, Y.-G.; Yeap, W.S.; Verbeeck, J.; Haenen, K.; Krueger, A. | ||||
| Title | Toward deep blue nano hope diamonds : heavily boron-doped diamond nanoparticles | Type | A1 Journal article | ||
| Year | 2014 | Publication | ACS nano | Abbreviated Journal |
Acs Nano |
| Volume | 8 | Issue | 6 | Pages | 5757-5764 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | The production of boron-doped diamond nanoparticles enables the application of this material for a broad range of fields, such as electrochemistry, thermal management, and fundamental superconductivity research. Here we present the production of highly boron-doped diamond nanoparticles using boron-doped CVD diamond films as a starting material. In a multistep milling process followed by purification and surface oxidation we obtained diamond nanoparticles of 1060 nm with a boron content of approximately 2.3 × 1021 cm3. Aberration-corrected HRTEM reveals the presence of defects within individual diamond grains, as well as a very thin nondiamond carbon layer at the particle surface. The boron K-edge electron energy-loss near-edge fine structure demonstrates that the B atoms are tetrahedrally embedded into the diamond lattice. The boron-doped diamond nanoparticles have been used to nucleate growth of a boron-doped diamond film by CVD that does not contain an insulating seeding layer. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000338089200039 | Publication Date | 2014-04-09 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1936-0851;1936-086X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 13.942 | Times cited | 71 | Open Access | |
| Notes | the Research Foundation Flanders (FWO-Vlaanderen) (G.0555.10N;G.0568.10N; G.0456.12; G0044.13N and a postdoctoral scholarship for S.T.); EU FP7 through Marie Curie ITN “MATCON” (PITNGA-127 2009-238201)the Collaborative Project “DINAMO” (No. 245122) Integrated Infrastructure Initiative, Reference No. 312483-ESTEEM2.; esteem2_jra3 | Approved | Most recent IF: 13.942; 2014 IF: 12.881 | ||
| Call Number | UA @ lucian @ c:irua:117599 | Serial | 3683 | ||
| Permanent link to this record | |||||
| Author | Lobato Hoyos, I.P.; van Dyck, D. | ||||
| Title | An accurate parameterization for scattering factors, electron densities and electrostatic potentials for neutral atoms that obey all physical constraints | Type | A1 Journal article | ||
| Year | 2014 | Publication | Acta crystallographica: section A: foundations of crystallography | Abbreviated Journal |
Acta Crystallogr A |
| Volume | 70 | Issue | 6 | Pages | 636-649 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT); Vision lab | ||||
| Abstract | An efficient procedure and computer program are outlined for fitting numerical X-ray and electron scattering factors with the correct inclusion of all physical constraints. The numerical electron scattering factors have been parameterized using five analytic non-relativistic hydrogen electron scattering factors as basis functions for 103 neutral atoms of the periodic table. The inclusion of the correct physical constraints in the electron scattering factor and its derived quantities allows the use of the new parameterization in different fields. In terms of quality of the fit, the proposed parameterization of the electron scattering factor is one order of magnitude better than the previous analytic fittings. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Copenhagen | Editor | ||
| Language | Wos | 000344599300012 | Publication Date | 2014-10-16 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2053-2733; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 5.725 | Times cited | 19 | Open Access | |
| Notes | Approved | Most recent IF: 5.725; 2014 IF: NA | |||
| Call Number | UA @ lucian @ c:irua:122103 | Serial | 93 | ||
| Permanent link to this record | |||||
| Author | Shi, H.; Frenzel, J.; Martinez, G.T.; Van Rompaey, S.; Bakulin, A.; Kulkova, A.; Van Aert, S.; Schryvers, D. | ||||
| Title | Site occupation of Nb atoms in ternary Ni-Ti-Nb shape memory alloys | Type | A1 Journal article | ||
| Year | 2014 | Publication | Acta materialia | Abbreviated Journal |
Acta Mater |
| Volume | 74 | Issue | Pages | 85-95 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Nb occupancy in the austenite B2-NiTi matrix and Ti2Ni phase in NiTiNb shape memory alloys was investigated by aberration-corrected scanning transmission electron microscopy and precession electron diffraction. In both cases, Nb atoms were found to prefer to occupy the Ti rather than Ni sites. A projector augmented wave method within density functional theory was used to calculate the atomic and electronic structures of the austenitic B2-NiTi matrix phase and the Ti2Ni precipitates both with and without addition of Nb. The obtained formation energies and analysis of structural and electronic characteristics explain the preference for Ti sites for Nb over Ni sites. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Oxford | Editor | ||
| Language | Wos | 000338621400009 | Publication Date | 2014-05-08 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1359-6454; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 5.301 | Times cited | 21 | Open Access | |
| Notes | Approved | Most recent IF: 5.301; 2014 IF: 4.465 | |||
| Call Number | UA @ lucian @ c:irua:118334 | Serial | 3028 | ||
| Permanent link to this record | |||||
| Author | Carraro, G.; Maccato, C.; Gasparotto, A.; Montini, T.; Turner, S.; Lebedev, O.I.; Gombac, V.; Adami, G.; Van Tendeloo, G.; Barreca, D.; Fornasiero, P.; | ||||
| Title | Enhanced hydrogen production by photoreforming of renewable oxygenates through nanostructured Fe2O3 polymorphs | Type | A1 Journal article | ||
| Year | 2014 | Publication | Advanced functional materials | Abbreviated Journal |
Adv Funct Mater |
| Volume | 24 | Issue | 3 | Pages | 372-378 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Sunlight-driven hydrogen production via photoreforming of aqueous solutions containing renewable compounds is an attractive option for sustainable energy generation with reduced carbon footprint. Nevertheless, the absence of photocatalysts combining high efficiency and stability upon solar light activation has up to date strongly hindered the development of this technology. Herein, two scarcely investigated iron(III) oxide polymorphs, β- and ε-Fe2O3, possessing a remarkable activity in sunlight-activated H2 generation from aqueous solutions of renewable oxygenates (i.e., ethanol, glycerol, glucose) are reported. For β-Fe2O3 and ε-Fe2O3, H2 production rates up to 225 and 125 mmol h−1 m−2 are obtained, with significantly superior performances with respect to the commonly investigated α-Fe2O3. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Weinheim | Editor | ||
| Language | Wos | 000332832500011 | Publication Date | 2013-10-08 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1616-301X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 12.124 | Times cited | 95 | Open Access | |
| Notes | Countatoms; Hercules; Fwo | Approved | Most recent IF: 12.124; 2014 IF: 11.805 | ||
| Call Number | UA @ lucian @ c:irua:113090 | Serial | 1051 | ||
| Permanent link to this record | |||||
| Author | Wang, J.T.W.; Cabana, L.; Bourgognon, M.; Kafa, H.; Protti, A.; Venner, K.; Shah, A.M.; Sosabowski, J.K.; Mather, S.J.; Roig, A.; Ke, X.; Van Tendeloo, G.; de Rosales, R.T.M.; Tobias, G.; Al-Jamal, K.T. | ||||
| Title | Magnetically decorated multiwalled carbon nanotubes as dual MRI and SPECT contrast agents | Type | A1 Journal article | ||
| Year | 2014 | Publication | Advanced functional materials | Abbreviated Journal |
Adv Funct Mater |
| Volume | 24 | Issue | 13 | Pages | 1880-1894 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Carbon nanotubes (CNTs) are one of the most promising nanomaterials to be used in biomedicine for drug/gene delivery as well as biomedical imaging. This study develops radio-labeled, iron oxide-decorated multiwalled CNTs (MWNTs) as dual magnetic resonance (MR) and single photon emission computed tomography (SPECT) contrast agents. Hybrids containing different amounts of iron oxide are synthesized by in situ generation. Physicochemical characterisations reveal the presence of superparamagnetic iron oxide nanoparticles (SPION) granted the magnetic properties of the hybrids. Further comprehensive examinations including high resolution transmission electron microscopy (HRTEM), fast Fourier transform simulations, X-ray diffraction, and X-ray photoelectron spectroscopy assure the conformation of prepared SPION as γ-Fe2O3. High r2 relaxivities are obtained in both phantom and in vivo MRI compared to the clinically approved SPION Endorem. The hybrids are successfully radio labeled with technetium-99m through a functionalized bisphosphonate and enable SPECT/CT imaging and γ-scintigraphy to quantitatively analyze the biodistribution in mice. No abnormality is found by histological examination and the presence of SPION and MWNT are identified by Perls stain and Neutral Red stain, respectively. TEM images of liver and spleen tissues show the co-localization of SPION and MWNTs within the same intracellular vesicles, indicating the in vivo stability of the hybrids after intravenous injection. The results demonstrate the capability of the present SPIONMWNT hybrids as dual MRI and SPECT contrast agents for in vivo use. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Weinheim | Editor | ||
| Language | Wos | 000333674100007 | Publication Date | 2013-11-19 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1616-301X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 12.124 | Times cited | 50 | Open Access | |
| Notes | Countatoms; Fp7; Esteem2; esteem2_ta | Approved | Most recent IF: 12.124; 2014 IF: 11.805 | ||
| Call Number | UA @ lucian @ c:irua:111589 | Serial | 1891 | ||
| Permanent link to this record | |||||
| Author | Khaletskaya, K.; Turner, S.; Tu, M.; Wannapaiboon, S.; Schneemann, A.; Meyer, R.; Ludwig, A.; Van Tendeloo, G.; Fischer, R.A. | ||||
| Title | Self-directed localization of ZIF-8 thin film formation by conversion of ZnO nanolayers | Type | A1 Journal article | ||
| Year | 2014 | Publication | Advanced functional materials | Abbreviated Journal |
Adv Funct Mater |
| Volume | 24 | Issue | 30 | Pages | 4804-4811 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Control of localized metal-organic framework (MOF) thin film formation is a challenge. Zeolitic imidazolate frameworks (ZIFs) are an important sub-class of MOFs based on transition metals and imidazolate linkers. Continuous coatings of intergrown ZIF crystals require high rates of heterogeneous nucleation. In this work, substrates coated with zinc oxide layers are used, obtained by atomic layer deposition (ALD) or by magnetron sputtering, to provide the Zn2+ ions required for nucleation and localized growth of ZIF-8 films ([Zn(mim)(2)]; Hmim = 2-methylimidazolate). The obtained ZIF-8 films reveal the expected microporosity, as deduced from methanol adsorption studies using an environmentally controlled quartz crystal microbalance (QCM) and comparison with bulk ZIF-8 reference data. The concept is transferable to other MOFs, and is applied to the formation of [Al(OH)(1,4-ndc)](n) (ndc = naphtalenedicarboxylate) thin films derived from Al2O3 nanolayers. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Weinheim | Editor | ||
| Language | Wos | 000340549900010 | Publication Date | 2014-05-07 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1616-301X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 12.124 | Times cited | 77 | Open Access | |
| Notes | 312483 Esteem2; Fwo; esteem2_ta | Approved | Most recent IF: 12.124; 2014 IF: 11.805 | ||
| Call Number | UA @ lucian @ c:irua:119215 | Serial | 2975 | ||
| Permanent link to this record | |||||
| Author | Spyrou, K.; Potsi, G.; Diamanti, E.K.; Ke, X.; Serestatidou, E.; Verginadis, I.I.; Velalopoulou, A.P.; Evangelou, A.M.; Deligiannakis, Y.; Van Tendeloo, G.; Gournis, D.; Rudolf, P.; | ||||
| Title | Towards Novel Multifunctional Pillared Nanostructures: Effective Intercalation of Adamantylamine in Graphene Oxide and Smectite Clays | Type | A1 Journal article | ||
| Year | 2014 | Publication | Advanced functional materials | Abbreviated Journal |
Adv Funct Mater |
| Volume | 24 | Issue | 37 | Pages | 5841-5850 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Multifunctional pillared materials are synthesized by the intercalation of cage-shaped adamantylamine (ADMA) molecules into the interlayer space of graphite oxide (GO) and aluminosilicate clays. The physicochemical and structural properties of these hybrids, determined by X-ray diffraction (XRD), Fourier transform infrared (FTIR), Raman and X-ray photoemission (XPS) spectroscopies and transmission electron microscopy (TEM) show that they can serve as tunable hydrophobic/hydrophilic and stereospecific nanotemplates. Thus, in ADMA-pillared clay hybrids, the phyllomorphous clay provides a hydrophilic nanoenvironment where the local hydrophobicity is modulated by the presence of ADMA moieties. On the other hand, in the ADMA-GO hybrid, both the aromatic rings of GO sheets and the ADMA molecules define a hydrophobic nanoenvironment where sp(3)-oxo moieties (epoxy, hydroxyl and carboxyl groups), present on GO, modulate hydrophilicity. As test applications, these pillared nanostructures are capable of selective/stereospecific trapping of small chlorophenols or can act as cytotoxic agents. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Weinheim | Editor | ||
| Language | Wos | 000342794500008 | Publication Date | 2014-07-19 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1616-301X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 12.124 | Times cited | 19 | Open Access | |
| Notes | Approved | Most recent IF: 12.124; 2014 IF: 11.805 | |||
| Call Number | UA @ lucian @ c:irua:121085 | Serial | 3686 | ||
| Permanent link to this record | |||||
| Author | Breynaert, E.; Emmerich, J.; Mustafa, D.; Bajpe, S.R.; Altantzis, T.; Van Havenbergh, K.; Taulelle, F.; Bals, S.; Van Tendeloo, G.; Kirschhock, C.E.A.; Martens, J.A.; | ||||
| Title | Enhanced self-assembly of metal oxides and metal-organic frameworks from precursors with magnetohydrodynamically induced long-lived collective spin states | Type | A1 Journal article | ||
| Year | 2014 | Publication | Advanced materials | Abbreviated Journal |
Adv Mater |
| Volume | 26 | Issue | 30 | Pages | 5173-5178 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Magneto-hydrodynamic generation of long-lived collective spin states and their impact on crystal morphology is demonstrated for three different, technologically relevant materials: COK-16 metal organic framework, manganese oxide nanotubes, and vanadium oxide nano-scrolls. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Weinheim | Editor | ||
| Language | Wos | 000340546300015 | Publication Date | 2014-06-02 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0935-9648; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 19.791 | Times cited | 7 | Open Access | OpenAccess |
| Notes | IAP-PAI; Marie Curie IEF; 262348 ESMI; 335078 COLOURATOM; 246791 COUNTATOMS; IWT; Methusalem; FWO; ECAS_Sara; (ROMEO:yellow; preprint:; postprint:restricted ; pdfversion:cannot); | Approved | Most recent IF: 19.791; 2014 IF: 17.493 | ||
| Call Number | UA @ lucian @ c:irua:118827 | Serial | 1053 | ||
| Permanent link to this record | |||||
| Author | Zhang, G.; Turner, S.; Ekimov, E.A.; Vanacken, J.; Timmermans, M.; Samuely, T.; Sidorov, V.A.; Stishov, S.M.; Lu, Y.; Deloof, B.; Goderis, B.; Van Tendeloo, G.; Van de Vondel, J.; Moshchalkov, V.V.; | ||||
| Title | Global and local superconductivity in boron-doped granular diamond | Type | A1 Journal article | ||
| Year | 2014 | Publication | Advanced materials | Abbreviated Journal |
Adv Mater |
| Volume | 26 | Issue | 13 | Pages | 2034-2040 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Strong granularity-correlated and intragrain modulations of the superconducting order parameter are demonstrated in heavily boron-doped diamond situated not yet in the vicinity of the metal-insulator transition. These modulations at the superconducting state (SC) and at the global normal state (NS) above the resistive superconducting transition, reveal that local Cooper pairing sets in prior to the global phase coherence. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Weinheim | Editor | ||
| Language | Wos | 000333616700008 | Publication Date | 2013-12-16 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0935-9648; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 19.791 | Times cited | 34 | Open Access | |
| Notes | Methusalem Funding; FWO projects; MP1201 COST Action; ERC Grant N246791-COUNTATOMS; post-doctoral grant (S.T.) and for project no. G.0568.10N.;Hercules Foundation | Approved | Most recent IF: 19.791; 2014 IF: 17.493 | ||
| Call Number | UA @ lucian @ c:irua:116150 | Serial | 1346 | ||
| Permanent link to this record | |||||
| Author | Ovsyannikov, S.V.; Karkin, A.E.; Morozova, N.V.; Shchennikov, V.V.; Bykova, E.; Abakumov, A.M.; Tsirlin, A.A.; Glazyrin, K.V.; Dubrovinsky, L. | ||||
| Title | A hard oxide semiconductor with a direct and narrow bandgap and switchable pn electrical conduction | Type | A1 Journal article | ||
| Year | 2014 | Publication | Advanced materials | Abbreviated Journal |
Adv Mater |
| Volume | 26 | Issue | 48 | Pages | 8185-8191 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | An oxide semiconductor (perovskite-type Mn2O3) is reported which has a narrow and direct bandgap of 0.45 eV and a high Vickers hardness of 15 GPa. All the known materials with similar electronic band structures (e.g., InSb, PbTe, PbSe, PbS, and InAs) play crucial roles in the semiconductor industry. The perovskite-type Mn2O3 described is much stronger than the above semiconductors and may find useful applications in different semiconductor devices, e.g., in IR detectors. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Weinheim | Editor | ||
| Language | Wos | 000346480800016 | Publication Date | 2014-10-27 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0935-9648; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 19.791 | Times cited | 27 | Open Access | |
| Notes | Approved | Most recent IF: 19.791; 2014 IF: 17.493 | |||
| Call Number | UA @ lucian @ c:irua:122230 | Serial | 1408 | ||
| Permanent link to this record | |||||
| Author | Tian, H.; Verbeeck, J.; Brück, S.; Paul, M.; Kufer, D.; Sing, M.; Claessen, R.; Van Tendeloo, G. | ||||
| Title | Interface-induced modulation of charge and polarization in thin film Fe3O4 | Type | A1 Journal article | ||
| Year | 2014 | Publication | Advanced materials | Abbreviated Journal |
Adv Mater |
| Volume | 26 | Issue | 3 | Pages | 461-465 |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Charge and polarization modulations in Fe3O4 are controlled by taking advantage of interfacial strain effects. The feasibility of oxidation state control by strain modification is demonstrated and it is shown that this approach offers a stable configuration at room temperature. Direct evidence of how a local strain field changes the atomic coordination and introduces atomic displacements leading to polarization of Fe ions is presented. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Weinheim | Editor | ||
| Language | Wos | 000334289300011 | Publication Date | 2013-10-25 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0935-9648; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 19.791 | Times cited | 15 | Open Access | |
| Notes | Vortex; FWO; Countatoms; Hercules ECASJO_; | Approved | Most recent IF: 19.791; 2014 IF: 17.493 | ||
| Call Number | UA @ lucian @ c:irua:112419UA @ admin @ c:irua:112419 | Serial | 1694 | ||
| Permanent link to this record | |||||
| Author | Macke, S.; Radi, A.; Hamann-Borrero, J.E.; Verna, A.; Bluschke, M.; Brück, S.; Goering, E.; Sutarto, R.; He, F.; Cristiani, G.; Wu, M.; Benckiser, E.; Habermeier, H.-U.; Logvenov, G.; Gauquelin, N.; Botton, G.A; Kajdos, A.P.; Stemmer, S.; Sawatzky,G.A.; Haverkort, M.W.; Keimer, B.; Hinkov, V. | ||||
| Title | Element Specific Monolayer Depth Profiling | Type | A1 Journal Article | ||
| Year | 2014 | Publication | Advanced Materials | Abbreviated Journal |
Adv Mater |
| Volume | 26 | Issue | 38 | Pages | 6554-6559 |
| Keywords | A1 Journal Article; Electron Microscopy for Materials Science (EMAT) | ||||
| Abstract | The electronic phase behavior and functionality of interfaces and surfaces in complex materials are strongly correlated to chemical composition profiles, stoichiometry and intermixing. Here a novel analysis scheme for resonant X-ray reflectivity maps is introduced to determine such profiles, which is element specific and non-destructive, and which exhibits atomic-layer resolution and a probing depth of hundreds of nanometers. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000343763200004 | Publication Date | 2014-08-08 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1521-4095 | ISBN | Additional Links | ||
| Impact Factor | 19.791 | Times cited | 34 | Open Access | |
| Notes | Approved | Most recent IF: 19.791; 2014 IF: NA | |||
| Call Number | EMAT @ emat @ | Serial | 4541 | ||
| Permanent link to this record | |||||