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Author	Bals, S.; Batenburg, K.J.; Liang, D.; Lebedev, O.; Van Tendeloo, G.; Aerts, A.; Martens, J.A.; Kirschhock, C.E.
Title	Quantitative three-dimensional modeling of zeotile through discrete electron tomography			Type	A1 Journal article
Year	2009	Publication	Journal of the American Chemical Society	Abbreviated Journal	J Am Chem Soc
Volume	131	Issue	13	Pages	4769-4773
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT); Vision lab
Abstract	Discrete electron tomography is a new approach for three-dimensional reconstruction of nanoscale objects. The technique exploits prior knowledge of the object to be reconstructed, which results in an improvement of the quality of the reconstructions. Through the combination of conventional transmission electron microscopy and discrete electron tomography with a model-based approach, quantitative structure determination becomes possible. In the present work, this approach is used to unravel the building scheme of Zeotile-4, a silica material with two levels of structural order. The layer sequence of slab-shaped building units could be identified. Successive layers were found to be related by a rotation of 120°, resulting in a hexagonal space group. The Zeotile-4 material is a demonstration of the concept of successive structuring of silica at two levels. At the first level, the colloid chemical properties of Silicalite-1 precursors are exploited to create building units with a slablike geometry. At the second level, the slablike units are tiled using a triblock copolymer to serve as a mesoscale structuring agent.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Washington, D.C.	Editor
Language		Wos	000264806300050	Publication Date	2009-03-16
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0002-7863;1520-5126;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	13.858	Times cited	58	Open Access
Notes	Fwo; Iap; Esteem 026019			Approved	Most recent IF: 13.858; 2009 IF: 8.580
Call Number	UA @ lucian @ c:irua:76393			Serial	2767
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Author	Schröder, F.; Esken, D.; Cokoja, M.; van den Berg, M.W.E.; Lebedev, O.I.; Van Tendeloo, G.; Walaszek, B.; Buntkowsky, G.; Limbach, H.H.; Chaudret, B.; Fischer, R.A.;
Title	Ruthenium nanoparticles inside porous (Zn40(bdC)(3)) by hydrogenolysis of adsorbed (Ru(cod)(cot)): a solid-state reference system for surfactant-stabilized ruthenium colloids			Type	A1 Journal article
Year	2008	Publication	Journal of the American Chemical Society	Abbreviated Journal	J Am Chem Soc
Volume	130	Issue	19	Pages	6119-6130
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	Washington, D.C.	Editor
Language		Wos	000255620200018	Publication Date	2008-04-11
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0002-7863;1520-5126;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	13.858	Times cited	272	Open Access
Notes	Esteem 026019			Approved	Most recent IF: 13.858; 2008 IF: 8.091
Call Number	UA @ lucian @ c:irua:68851			Serial	2934
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Author	Barreca, D.; Carraro, G.; Gasparotto, A.; Maccato, C.; Lebedev, O.I.; Parfenova, A.; Turner, S.; Tondello, E.; Van Tendeloo, G.
Title	Tailored vapor-phase growth of Cu_xO-TiO₂(x=1,2) nanomaterials decorated with Au particles			Type	A1 Journal article
Year	2011	Publication	Langmuir: the ACS journal of surfaces and colloids	Abbreviated Journal	Langmuir
Volume	27	Issue	10	Pages	6409-6417
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	We report on the fabrication of CuxOTiO2 (x = 1, 2) nanomaterials by an unprecedented vapor-phase approach. The adopted strategy involves the growth of porous CuxO matrices by means of chemical vapor deposition (CVD), followed by the controlled dispersion of TiO2 nanoparticles. The syntheses are performed on Si(100) substrates at temperatures of 400550 °C under wet oxygen atmospheres, adopting Cu(hfa)2·TMEDA (hfa =1,1,1,5,5,5-hexafluoro-2,4-pentanedionate; TMEDA = N,N,N′,N′-tetramethylethylenediamine) and Ti(O-iPr)2(dpm)2 (O-iPr = isopropoxy; dpm = 2,2,6,6-tetramethyl-3,5-heptanedionate) as copper and titanium precursors, respectively. Subsequently, finely dispersed gold nanoparticles are introduced in the as-prepared systems via radio frequency (RF)-sputtering under mild conditions. The synthesis process results in the formation of systems with chemical composition and nano-organization strongly dependent on the nature of the initial CuxO matrix and on the deposited TiO2 amount. The decoration with low-size gold clusters paves the way to the engineering of hierarchically organized nanomaterials.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Washington, D.C.	Editor
Language		Wos	000290292900082	Publication Date	2011-04-25
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0743-7463;1520-5827;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	3.833	Times cited	36	Open Access
Notes	Fwo			Approved	Most recent IF: 3.833; 2011 IF: 4.186
Call Number	UA @ lucian @ c:irua:88940			Serial	3467
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Author	Shen, Y.; Turner, S.; Yang, P.; Van Tendeloo, G.; Lebedev, O.I.; Wu, T.
Title	Epitaxy-enabled vapor-liquid-solid growth of tin-doped indium oxide nanowires with controlled orientations			Type	A1 Journal article
Year	2014	Publication	Nano letters	Abbreviated Journal	Nano Lett
Volume	14	Issue	8	Pages	4342-4351
Keywords	A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
Abstract	Controlling the morphology of nanowires in bottom-up synthesis and assembling them on planar substrates is of tremendous importance for device applications in electronics, photonics, sensing and energy conversion. To date, however, there remain challenges in reliably achieving these goals of orientation-controlled nanowire synthesis and assembly. Here we report that growth of planar, vertical and randomly oriented tin-doped indium oxide (ITO) nanowires can be realized on yttria-stabilized zirconia (YSZ) substrates via the epitaxy-assisted vaporliquidsolid (VLS) mechanism, by simply regulating the growth conditions, in particular the growth temperature. This robust control on nanowire orientation is facilitated by the small lattice mismatch of 1.6% between ITO and YSZ. Further control of the orientation, symmetry and shape of the nanowires can be achieved by using YSZ substrates with (110) and (111), in addition to (100) surfaces. Based on these insights, we succeed in growing regular arrays of planar ITO nanowires from patterned catalyst nanoparticles. Overall, our discovery of unprecedented orientation control in ITO nanowires advances the general VLS synthesis, providing a robust epitaxy-based approach toward rational synthesis of nanowires.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Washington	Editor
Language		Wos	000340446200022	Publication Date	2014-06-27
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1530-6984;1530-6992;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	12.712	Times cited	33	Open Access
Notes	European Union Seventh Framework Programme under Grant 312483 – ESTEEM; FWOl; esteem2_ta			Approved	Most recent IF: 12.712; 2014 IF: 13.592
Call Number	UA @ lucian @ c:irua:118622			Serial	1075
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Author	Gao, J.; Lebedev, O.I.; Turner, S.; Li, Y.F.; Lu, Y.H.; Feng, Y.P.; Boullay, P.; Prellier, W.; Van Tendeloo, G.; Wu, T.
Title	Phase selection enabled formation of abrupt axial heterojunctions in branched oxide nanowires			Type	A1 Journal article
Year	2012	Publication	Nano letters	Abbreviated Journal	Nano Lett
Volume	12	Issue	1	Pages	275-280
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Rational synthesis of nanowires via the vaporliquidsolid (VLS) mechanism with compositional and structural controls is vitally important for fabricating functional nanodevices from bottom up. Here, we show that branched indium tin oxide nanowires can be in situ seeded in vapor transport growth using tailored AuCu alloys as catalyst. Furthermore, we demonstrate that VLS synthesis gives unprecedented freedom to navigate the ternary InSnO phase diagram, and a rare and bulk-unstable cubic phase can be selectively stabilized in nanowires. The stabilized cubic fluorite phase possesses an unusual almost equimolar concentration of In and Sn, forming a defect-free epitaxial interface with the conventional bixbyite phase of tin-doped indium oxide that is the most employed transparent conducting oxide. This rational methodology of selecting phases and making abrupt axial heterojunctions in nanowires presents advantages over the conventional synthesis routes, promising novel composition-modulated nanomaterials.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Washington	Editor
Language		Wos	000298943100048	Publication Date	2011-12-05
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1530-6984;1530-6992;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	12.712	Times cited	25	Open Access
Notes	Fwo			Approved	Most recent IF: 12.712; 2012 IF: 13.025
Call Number	UA @ lucian @ c:irua:94209			Serial	2587
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Author	Dluzewski, P.; Pietraszko, A.; Kozlowski, M.; Szczepanska, A.; Gorecka, J.; Baran, M.; Leonyuk, L.; Babonas, G.J.; Lebedev, O.I.; Szymczak, R.
Title	Electron microscopy and X-ray structural investigations of incommensurate spin-ladder Sr_4.1Ca_4.7Bi_0.3Cu₁₇O₂₉ single crystals			Type	A1 Journal article
Year	2000	Publication	Acta physica Polonica: A: general physics, solid state physics, applied physics	Abbreviated Journal	Acta Phys Pol A
Volume	98	Issue	6	Pages	729-737
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Transmission electron microscopy and X-ray diffraction proved chain/ladder incommensurate single crystal structure of investigated samples. The incommensurate ratio was determined from the X-ray and electron diffraction being equal to 0.704. Diffuse scattering intensities localised on the planes perpendicular to the c*-axis and passing through the spots originating from the periodicity of chain sublattice were detected. High-angle grain boundary or twinning formed by rotation of 33.3 degrees around [100] direction was observed. High-resolution electron microscopy images revealed the stacking faults in ac planes.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Warszawa	Editor
Language		Wos	000166377600007	Publication Date	0000-00-00
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0587-4246	ISBN		Additional Links	UA library record; WoS full record;
Impact Factor	0.469	Times cited		Open Access
Notes				Approved	Most recent IF: 0.469; 2000 IF: 0.409
Call Number	UA @ lucian @ c:irua:104226			Serial	951
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Author	Lebedev, O.I.; Van Tendeloo, G.; Amelinckx, S.; Leibold, B.; Habermeier, H.U.; Phillipp, F.
Title	Structure and magnetotransport properties of La_2/3Ca_1/3MnO₃ thin films prepared by pulsed laser deposition			Type	P1 Proceeding
Year	1998	Publication	Materials Research Society symposium proceedings T2 – Symposium on Advances in Laser Ablation of Materials at the 1998 MRS, Spring Meeting, April 13-16, 1998, San Francisco, Calif.	Abbreviated Journal
Volume		Issue		Pages	219-224
Keywords	P1 Proceeding; Electron microscopy for materials research (EMAT)
Abstract	La1-xCaxMnO3-delta (LCMO) thin films are grown by pulsed laser deposition on a (100) SrTiO3 substrate at temperatures between 530 degrees C and 890 degrees C. The magnetotransport properties show a high negative magnetoresistance and a shift of the maximum of the R(T) curve as function of temperature. The Curie temperature changes with deposition temperature and film quality in the range of 100-220K. The film quality is characterised by X-ray diffraction and transmission electron microscopy (TEM); film and target compositions were verified by atomic emission spectroscopy. The local structure of the film depends on the growth conditions and substrate temperature. TEM reveals a slight distortion of the film leading to a breakdown of the symmetry from orthorhombic to monoclinic. At the highest growth temperatures, a well defined interface is observed within the LCMO film, parallel to the substrate surface; this interface divides the film into two lamellae with a different microstructure. The lamella close to the substrate is perfectly coherent with the substrate, suggesting that it is strained as a result of the lattice parameter mismatch; the upper lamella shows a typical domain structure with unusual translation interfaces characterised by a displacement vector of the type 1/2[010](m) and 1/2[001](m) when referred ten the monoclinic lattice.
Address
Corporate Author				Thesis
Publisher	Materials research society	Place of Publication	Warrendale	Editor
Language		Wos	000077696000032	Publication Date	2011-04-05
Series Editor		Series Title		Abbreviated Series Title
Series Volume	526	Series Issue		Edition
ISSN	1946-4274;	ISBN		Additional Links	UA library record; WoS full record
Impact Factor		Times cited		Open Access
Notes				Approved	Most recent IF: NA
Call Number	UA @ lucian @ c:irua:95838			Serial	3283
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Author	Mahieu, S.; Ghekiere, P.; de Winter, G.; de Gryse, R.; Depla, D.; Lebedev, O.I.
Title	Biaxially aligned yttria stabilized zirconia and titanium nitride layers deposited by unbalanced magnetron sputtering			Type	A1 Journal article
Year	2005	Publication	Diffusion and defect data : solid state data : part B : solid state phenomena T2 – 2nd International Conference on Texture and Anisotropy of Polycrystals, JUL 07-09, 2004, Metz, FRANCE	Abbreviated Journal
Volume	105	Issue		Pages	447-452
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Control of the texture and the biaxial alignment of sputter deposited films has provoked a great deal of interest due to its technological importance. indeed, many physical properties of thin films are influenced by the biaxial alignment. In this context, extensive research has been established to understand the growth mechanism of biaxially aligned Yttria Stabilized Zirconia (YSZ) as a buffer layer for high temperature superconducting copper oxides. In this work, the growth mechanism in general and the mechanism responsible of the biaxial alignment in detail were investigated for thin films of YSZ and TiN deposited by unbalanced magnetron sputtering using non-aligned polycrystalline stainless steel substrates. The mechanism responsible for the preferential out-of-plane alignment has been investigated by performing depositions on a non-tilted substrate. However, to study the in-plane alignment a tilted substrate was used. The microstructure of the deposited layers was characterised by Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). The crystallographic alignment has been investigated by X-ray diffraction (XRD) (angular scans and pole figures) and by Selective Area Diffraction (SAD). It was observed that the deposited layers show a zone T or zone II structure and the layers with a zone T structure consist of faceted grains. There seems to be a correlation between the crystal habit of these faceted grains and the measured biaxial alignment. A model for the preferential out-of-plane orientation, the in-plane alignment and the correlation between the microstructure and the biaxial alignment is proposed.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Vaduz	Editor
Language		Wos		Publication Date	0000-00-00
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	3-908451-09-4	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor		Times cited		Open Access
Notes				Approved	Most recent IF: NA
Call Number	UA @ lucian @ c:irua:103190			Serial	230
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Author	Ghekiere, P.; Mahieu, S.; De Winter, G.; De Gryse, R.; Depla, D.; Lebedev, O.I.
Title	Growth mechanism of biaxially aligned magnesium oxide deposited by unbalanced magnetron sputtering			Type	A1 Journal article
Year	2005	Publication	Diffusion and defect data : solid state data : part B : solid state phenomena T2 – 2nd International Conference on Texture and Anisotropy of Polycrystals, JUL 07-09, 2004, Metz, FRANCE	Abbreviated Journal
Volume	105	Issue		Pages	433-438
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	For many years magnesium oxide (MgO) has been a topic of research as buffer layer for high-temperature superconducting copper oxides and as protective layer in plasma display panels. Since epitaxial growth of MgO is expensive, time consuming and size restricted, other techniques have been developed to grow highly oriented MgO layers for industrial processes. MgO thin films were deposited on a tilted polycrystalline substrate by reactive sputtering using an unbalanced magnetron. By varying different deposition parameters, it is possible to grow biaxially aligned MgO layers, i.e. layers with both out-of-plane and in-plane alignment. XRD measurements were performed to examine the crystallographic structure of the thin film. The preferential out-of-plane orientation is analysed by angular scans using the peak intensity of different reflections while the in-plane orientation is determined by (002) pole figures. Fully [111] out-of-plane oriented layers were grown with a strong in-plane alignment. SEM and TEM measurements were performed to reveal the topographical and cross-sectional microstructure and to investigate the texture evolution of the MgO layers. Evolutionary columnar growth and a roof-tile surface have been observed.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Vaduz	Editor
Language		Wos	000230478000069	Publication Date	2009-03-16
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1662-9779;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor		Times cited	5	Open Access
Notes				Approved	Most recent IF: NA
Call Number	UA @ lucian @ c:irua:104085			Serial	1392
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Author	Lebedev, O.I.; Van Tendeloo, G.; Suvorova, A.A.; Usov, I.O.; Suvorov, A.V.
Title	HREM study of ion implantation in 6H-SiC at high temperatures			Type	A1 Journal article
Year	1997	Publication	Journal of electron microscopy	Abbreviated Journal	Microscopy-Jpn
Volume	46	Issue	4	Pages	271-279
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	Tokyo	Editor
Language		Wos	A1997XY94900002	Publication Date	0000-00-00
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-0744; 1477-9986	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	0.9	Times cited	7	Open Access
Notes				Approved	Most recent IF: NA
Call Number	UA @ lucian @ c:irua:21444			Serial	1511
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Author	Van Tendeloo, G.; Lebedev, O.I.; Shpanchenko, R.V.; Antipov, E.V.
Title	Structure determination of YBCO fluorinated phases by HREM			Type	A1 Journal article
Year	1997	Publication	Journal of electron microscopy	Abbreviated Journal	Microscopy-Jpn
Volume	1	Issue		Pages	23-31
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	Tokyo	Editor
Language		Wos		Publication Date	0000-00-00
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-0744; 1477-9986	ISBN		Additional Links	UA library record
Impact Factor	0.9	Times cited		Open Access
Notes				Approved	Most recent IF: NA
Call Number	UA @ lucian @ c:irua:21418			Serial	3301
Permanent link to this record



Author	Lebedev, O.I.; Van Tendeloo, G.
Title	Phase transitions: an alternative for stress accommodation in CMR manganate films			Type	A1 Journal article
Year	2004	Publication	Zeitschrift für Metallkunde	Abbreviated Journal	Z Metallkd
Volume	95	Issue	4	Pages	244-246
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	Stuttgart	Editor
Language		Wos	000221329500011	Publication Date	2013-12-09
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0044-3093;	ISBN		Additional Links	UA library record; WoS full record
Impact Factor		Times cited		Open Access
Notes				Approved	Most recent IF: NA
Call Number	UA @ lucian @ c:irua:54864			Serial	2593
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Author	Philippaerts, A.; Paulussen, S.; Turner, S.; Lebedev, O.I.; Van Tendeloo, G.; Poelman, H.; Bulut, M.; de Clippel, F.; Smeets, P.; Sels, B.; Jacobs, P.
Title	Selectivity in sorption and hydrogenation of methyl oleate and elaidate on MFI zeolites			Type	A1 Journal article
Year	2010	Publication	Journal of catalysis	Abbreviated Journal	J Catal
Volume	270	Issue	1	Pages	172-184
Keywords	A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
Abstract	Different zeolites were tested for selective removal of methyl elaidate (trans isomer) from an equimolar mixture with methyl oleate (cis isomer). Sorption experiments of the geometric isomers show that only ZSM-5 samples with reduced Al content in the framework are able to discriminate among the bent cis and the linear trans fatty acid methyl esters. Hydrogenation experiments of equimolar methyl oleate and elaidate mixtures at low temperature (65 °C) and high hydrogen pressure (6.0 MPa), using Pt catalysts, confirm this result. Only with a Pt/NaZSM-5 catalyst outspoken selectivity for the hydrogenation of the trans isomer is obtained. In order to prepare a selective Pt/ZSM-5 catalyst, the influence of Pt addition (impregnation, ion-exchange and competitive ion-exchange) and Pt activation (different calcination and reduction temperatures) on the Pt-distribution and Pt particle size was investigated using SEM, bright-field and HR TEM, EDX, electron tomography, CO-chemisorption, XPS, XRD, and UVvis measurements. The best result in terms of hydrogenation activity and selectivity is obtained with a Pt/ZSM-5 catalyst, which is prepared via competitive ion-exchange, followed by slow calcination up to 350 °C under high O2 flow and a reduction up to 500 °C under H2. This preparation method leads to a Pt/ZSM-5 catalyst with the best Pt distribution and the smallest Pt clusters occluded in the zeolite structure. Finally, the influence of zeolite crystal size, morphology, and elemental composition of ZSM-5 on hydrogenation activity and selectivity was investigated in detail.
Address
Corporate Author				Thesis
Publisher		Place of Publication	San Diego, Calif.	Editor
Language		Wos	000275966100021	Publication Date	2010-01-28
Series Editor		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	24	Open Access
Notes	FWO; IAP-IV; Methusalem			Approved	Most recent IF: 6.844; 2010 IF: 5.415
Call Number	UA @ lucian @ c:irua:82435			Serial	2970
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Author	Geuens, P.; Lebedev, O.I.; van Dyck, D.; Van Tendeloo, G.
Title	Accurate measurements of atomic displacements in La_0.9Sr_0.1MnO₃ thin films grown on a SrTiO₃ substrate			Type	H3 Book chapter
Year	2000	Publication		Abbreviated Journal
Volume		Issue		Pages	1133-1134
Keywords	H3 Book chapter; Electron microscopy for materials research (EMAT); Vision lab
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	s.l.	Editor
Language		Wos		Publication Date	0000-00-00
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
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:54730			Serial	49
Permanent link to this record



Author	De Gryse, O.; Clauws, P.; Vanhellemont, J.; Lebedev, O.; van Landuyt, J.; Simoen, E.; Claeys, C.
Title	Chemical and structural characterization of oxide precipitates in heavily boron doped silicon by infrared spectroscopy and transmission electron microscopy			Type	P1 Proceeding
Year	2002	Publication		Abbreviated Journal
Volume		Issue		Pages	183-194
Keywords	P1 Proceeding; Electron microscopy for materials research (EMAT)
Abstract	Infrared absorption spectra of oxygen precipitates in boron doped silicon with a boron concentration between 10(17) and 10(19) cm(-3) are analyzed, applying the spectral function theory of the composite precipitates. The aspect ratio of the platelet precipitates has been determined by transmission electron microscopy measurements. Our analysis shows that in samples with moderate doping levels (<10(18) B cm(-3)) SiOgamma precipitates are formed with stoichiometry as in the lightly doped case. In the heavily (>10(18) cm(-3)) boron doped samples, however, the measured spectra of the precipitates are consistent with a mixture of SiO2 and B2O3. with a volume fraction of B2O3 as high as 0.41 in the most heavily doped case.
Address
Corporate Author				Thesis
Publisher		Place of Publication	S.l.	Editor
Language		Wos		Publication Date	0000-00-00
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1-56677-344-X	ISBN		Additional Links	UA library record; WoS full record;
Impact Factor		Times cited		Open Access
Notes				Approved	Most recent IF: NA
Call Number	UA @ lucian @ c:irua:94950			Serial	344
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Author	Lebedev, O.; Van Tendeloo, G.; Marezio, M.; Licci, F.; Gilioli, E.; Gauzzi, A.; Prodi, A.
Title	The crystal structure of YSr₂Cu₃O_6+x determined by HREM			Type	H3 Book chapter
Year	2002	Publication		Abbreviated Journal
Volume		Issue		Pages	877-878
Keywords	H3 Book chapter; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	s.l.	Editor
Language		Wos		Publication Date	0000-00-00
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
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:54842			Serial	572
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Author	Lebedev, O.I.; Van Tendeloo, G.; Amelinckx, S.
Title	Strained La_1-xSr_xMnO₃ (x = 0.1 – 0.3) thin films studied by HREM			Type	H3 Book chapter
Year	2000	Publication		Abbreviated Journal
Volume		Issue		Pages	201-202
Keywords	H3 Book chapter; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	s.l.	Editor
Language		Wos		Publication Date	0000-00-00
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
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:54731			Serial	3173
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Author	Hadermann, J.; Abakumov, A.M.; Lebedev, O.I.; Antipov, E.V.; Van Tendeloo, G.
Title	*Structural changes in fluorinated T{'} and T^ phases**			Type	P3 Proceeding
Year	2000	Publication		Abbreviated Journal
Volume		Issue		Pages	193-194
Keywords	P3 Proceeding; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	s.l.	Editor
Language		Wos		Publication Date	0000-00-00
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
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:36044			Serial	3212
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Author	Lebedev, O.; Verbeeck, J.; Van Tendeloo, G.; Shapoval, O.; Belenchuk, A.; Moshnyaga, V.; Damaschke, B.; Samwer, K.
Title	Structural phase transition in (La_0.67Ca_0.33MnO₃)_1-x: (MgO)_x composite film			Type	H3 Book chapter
Year	2002	Publication		Abbreviated Journal
Volume		Issue		Pages	1013-1014
Keywords	H3 Book chapter; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	s.l.	Editor
Language		Wos		Publication Date	0000-00-00
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
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:54843			Serial	3248
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Author	Van Tendeloo, G.; Pauwels, B.; Geuens, P.; Lebedev, O.
Title	TEM of nanostructured materials			Type	P3 Proceeding
Year	2000	Publication		Abbreviated Journal
Volume		Issue		Pages	3-6
Keywords	P3 Proceeding; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	s.l.	Editor
Language		Wos	A1993BY15K00001	Publication Date	0000-00-00
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN		ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor		Times cited	31	Open Access
Notes				Approved	Most recent IF: NA
Call Number	UA @ lucian @ c:irua:29731			Serial	3482
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Author	Laffez, P.; Lebedev, O.I.; Ruello, P.; Desfeux, R.; Banerjee, G.; Capon, F.
Title	Evidence of strain induced structural change in hetero-epitaxial NdNiO₃ thin films with metal-insulator transition			Type	A1 Journal article
Year	2004	Publication	European physical journal: applied physics	Abbreviated Journal	Eur Phys J-Appl Phys
Volume	25	Issue	1	Pages	25-31
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Neodymium nickelate thin films have been prepared on NdGaO3 substrates by RF magnetron sputtering and post-annealing treatment under oxygen pressure. Transport properties are found to depend strongly on film thickness. Thick films show transport properties close to bulk ceramics, while very thin films exhibit a large transition from metal to insulator which occurs over a wide temperature range with high resistivity. Structure and surface morphology of the films have been investigated by Transmission Electron Microscopy (TEM) and Atomic Force Microscopy (AFM). Thin films (approximate to17 nm) grow heteroepitaxially, while thicker films (approximate to73 nm) show a granular structure. The thinnest sample suggests a symmetry change induced by the epitaxial strain of the substrate. This paper discusses the relationship between microstructure and transport properties.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Paris	Editor
Language		Wos	000187286000003	Publication Date	2003-12-15
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1286-0042;1286-0050;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	0.684	Times cited	12	Open Access
Notes				Approved	Most recent IF: 0.684; 2004 IF: 0.745
Call Number	UA @ lucian @ c:irua:103256			Serial	1096
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Author	Kalitzova, M.; Vlakhov, E.; Marinov, Y.; Gesheva, K.; Ignatova, V.A.; Lebedev, O.; Muntele, C.; Gijbels, R.
Title	Effect of high-frequency electromagnetic field on Te⁺-implanted (001) Si</tex>			Type	A1 Journal article
Year	2004	Publication	Vacuum: the international journal and abstracting service for vacuum science and technology	Abbreviated Journal	Vacuum
Volume	76	Issue	2-3	Pages	325-328
Keywords	A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract	The analysis of high-frequency electromagnetic field (HFEMF) effects on the microstructure and electrical properties of Te+ implanted (0 0 1) Si is reported. Cross-sectional high-resolution transmission electron microscopy (XHRTEM) demonstrates the formation of Te nanoclusters (NCs) embedded in the Si layer amorphized by implantation (a-Si) at fluences greater than or equal to 1 x 10(16) cm(-2). Post-implantation treatment with 0.45 MHz HFEMF leads to enlargement of Te NCs, their diffusion and accumulation at the a-Si surface and formation of laterally connected extended tellurium structures above the percolation threshold, appearing at an ion fluence of 1 x 10(17) cm(-2). AC electrical conductivity measurements show nearly four orders of magnitude decrease of impedance resistivity in this case, which is in good agreement with the results of our structural studies. The results obtained are discussed in terms of the two-phase isotropic spinodal structure. (C) 2004 Elsevier Ltd. All rights reserved.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Oxford	Editor
Language		Wos	000224890100048	Publication Date	2004-08-21
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0042-207X;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	1.53	Times cited	2	Open Access
Notes				Approved	Most recent IF: 1.53; 2004 IF: 0.902
Call Number	UA @ lucian @ c:irua:95105			Serial	814
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Author	Afanasov, I.M.; Shornikova, O.N.; Avdeev, V.V.; Lebedev, O.I.; Van Tendeloo, G.; Matveev, A.T.
Title	Expanded graphite as a support for Ni/carbon composites			Type	A1 Journal article
Year	2009	Publication	Carbon	Abbreviated Journal	Carbon
Volume	47	Issue	2	Pages	513-518
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Expanded graphite decorated with nickel oxide particles (EGNiO) has been synthesized through electrochemical oxidation of natural graphite in an aqueous nickel nitrate solution followed by a heat treatment. EGNiO was used to prepare nickel/carbon composites using two techniques: (a) hydrogen reduction of nickel oxide particles loaded on the expanded graphite surface and (b) pyrolysis of coal tar pitch-impregnated EGNiO blocks. The EGNiO as well as the nickel/carbon composites have been characterized by X-ray diffraction, scanning and transmission electron microscopy, energy dispersive X-ray spectroscopy and selected area electron diffraction.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Oxford	Editor
Language		Wos	000262558300018	Publication Date	2008-11-11
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	45	Open Access
Notes	Iap-Vi			Approved	Most recent IF: 6.337; 2009 IF: 4.504
Call Number	UA @ lucian @ c:irua:76033			Serial	1132
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Author	Simon, Q.; Barreca, D.; Bekermann, D.; Gasparotto, A.; Maccato, C.; Comini, E.; Gombac, V.; Fornasiero, P.; Lebedev, O.I.; Turner, S.; Devi, A.; Fischer, R.A.; Van Tendeloo, G.
Title	Plasma-assisted synthesis of Ag/ZnO nanocomposites : first example of photo-induced H₂ production and sensing			Type	A1 Journal article
Year	2011	Publication	International journal of hydrogen energy	Abbreviated Journal	Int J Hydrogen Energ
Volume	36	Issue	24	Pages	15527-15537
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Ag/ZnO nanocomposites were developed by a plasma-assisted approach. The adopted strategy exploits the advantages of Plasma Enhanced-Chemical Vapor Deposition (PE-CVD) for the growth of columnar ZnO arrays on Si(100) and Al2O3 substrates, in synergy with the infiltration power of the Radio Frequency (RF)-sputtering technique for the subsequent dispersion of different amounts of Ag nanoparticles (NPs). The resulting composites, both as-prepared and after annealing in air, were thoroughly characterized with particular attention on their morphological organization, structure and composition. For the first time, the above systems have been used as catalysts in the production of hydrogen by photo-reforming of alcoholic solutions, yielding a stable H2 evolution even by the sole use of simulated solar radiation. In addition, Ag/ZnO nanocomposites presented an excellent response in the gas-phase detection of H2, opening attractive perspectives for advanced technological applications.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Oxford	Editor
Language		Wos	000297089700006	Publication Date	2011-10-14
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	62	Open Access
Notes	Esteem 026019; Fwo			Approved	Most recent IF: 3.582; 2011 IF: 4.054
Call Number	UA @ lucian @ c:irua:91901			Serial	2627
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Author	de Gryse, O.; Clauws, P.; Vanhellemont, J.; Lebedev, O.I.; van Landuyt, J.; Simoen, E.; Claeys, C.
Title	Characterization of oxide precipitates in heavily B-doped silicon by infrared spectroscopy			Type	A1 Journal article
Year	2004	Publication	Journal of the electrochemical society	Abbreviated Journal	J Electrochem Soc
Volume	151	Issue	9	Pages	G598-G605
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Infrared absorption spectra of oxygen precipitates in boron-doped silicon with a boron concentration between 10(17) and 10(19) cm(-3) are analyzed, applying the spectral function representation of composite materials. The aspect ratio of the platelet precipitates is determined by transmission electron microscopy measurements. The analysis shows that in samples with moderate doping levels (<10(18) B cm(-3)) SiOγ precipitates are formed with the same composition as in the lightly doped case. In the heavily boron-doped (>10(18) cm(-3)) samples, however, the measured spectra of the precipitates are consistent with a mixture of SiO2 and B2O3, with a volume fraction of B2O3 as high as 0.41 in the most heavily doped case. (C) 2004 The Electrochemical Society.
Address
Corporate Author				Thesis
Publisher		Place of Publication	New York, N.Y.	Editor
Language		Wos	000223622000072	Publication Date	2004-08-30
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0013-4651;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	3.259	Times cited	13	Open Access
Notes	Fwo; Iuap P5/01			Approved	Most recent IF: 3.259; 2004 IF: 2.356
Call Number	UA @ lucian @ c:irua:103760			Serial	330
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Author	Jalkanen, P.; Tuboltsev, V.; Virtanen, A.; Arutyunov, K.; Räisänen, J.; Lebedev, O.; Van Tendeloo, G.
Title	Critical temperature modification of low dimensional superconductors by spin doping			Type	A1 Journal article
Year	2007	Publication	Solid state communications	Abbreviated Journal	Solid State Commun
Volume	142	Issue	7	Pages	407-411
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	New York, N.Y.	Editor
Language		Wos	000246815800010	Publication Date	2007-03-14
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0038-1098;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	1.554	Times cited	7	Open Access
Notes				Approved	Most recent IF: 1.554; 2007 IF: 1.535
Call Number	UA @ lucian @ c:irua:64746			Serial	546
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Author	Oró-Solé, J.; Frontera, C.; Beltrán-Porter, D.; Lebedev, O.I.; Van Tendeloo, G.; Fuertes, A.
Title	Crystal structures of superconducting sodium intercalates of hafnium nitride chloride			Type	A1 Journal article
Year	2006	Publication	Materials research bulletin	Abbreviated Journal	Mater Res Bull
Volume	41	Issue	5	Pages	934-940
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	New York, N.Y.	Editor
Language		Wos	000238116800005	Publication Date	2006-04-19
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0025-5408;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.446	Times cited	8	Open Access
Notes				Approved	Most recent IF: 2.446; 2006 IF: 1.383
Call Number	UA @ lucian @ c:irua:59594			Serial	579
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Author	Köster, S.; Moshnyaga, V.; Samwer, K.; Lebedev, O.I.; Van Tendeloo, G.; Shapoval, O.; Belenchuk, A.
Title	Doping of interfaces in (La_0.7Sr_0.3MnO₃)_1-x:(MgO)_x composite films			Type	A1 Journal article
Year	2002	Publication	Applied physics letters	Abbreviated Journal	Appl Phys Lett
Volume	81	Issue	9	Pages	1648-1650
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher	American Institute of Physics	Place of Publication	New York, N.Y.	Editor
Language		Wos	000177549200036	Publication Date	2002-09-30
Series Editor		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	35	Open Access
Notes				Approved	Most recent IF: 3.411; 2002 IF: 4.207
Call Number	UA @ lucian @ c:irua:54802			Serial	751
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Author	Hezareh, T.; Razavi, F.S.; Kremer, R.K.; Habermeier, H.-U.; Lebedev, O.I.; Kirilenko, D.; Van Tendeloo, G.
Title	Effect of PbZr_0.52Ti_0.48O₃ thin layer on structure, electronic and magnetic properties of La_0.65Sr_0.35MnO₃ and La_0.65Ca_0.30MnO₃ thin-films			Type	A1 Journal article
Year	2011	Publication	Journal of applied physics	Abbreviated Journal	J Appl Phys
Volume	109	Issue	11	Pages	113707,1-113707,8
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Epitaxial thin film heterostructures of high dielectric PbZr<sub>1-x</sub>Ti<sub>x</sub>O<sub>3</sub> (PZT) and La<sub>1-x</sub>A<sub>x</sub>MnO<sub>3</sub> (A-divalent alkaline earth metals such as Sr (LSMO) and Ca (LCMO)) were grown on SrTiO<sub>3</sub> substrates and their structure, temperature dependence of electrical resistivity, and magnetization were investigated as a function of the thickness of the LSMO(LCMO) layer. The microstructures of the samples were analyzed by TEM. By applying an electric field across the PZT layer, we applied a ferrodistortive pressure on the manganite layer and studied the correlations between lattice distortion and electric transport and magnetic properties of the CMR materials.
Address
Corporate Author				Thesis
Publisher	American Institute of Physics	Place of Publication	New York, N.Y.	Editor
Language		Wos	000292214700069	Publication Date	2011-06-06
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	4	Open Access
Notes				Approved	Most recent IF: 2.068; 2011 IF: 2.168
Call Number	UA @ lucian @ c:irua:90964			Serial	843
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Author	Verbeeck, J.; Lebedev, O.I.; Van Tendeloo, G.; Silcox, J.; Mercey, B.; Hervieu, M.; Haghiri-Gosnet, A.M.
Title	Electron energy-loss spectroscopy study of a (LaMnO₃)₈(SrMnO₃)₄ heterostructure			Type	A1 Journal article
Year	2001	Publication	Applied physics letters	Abbreviated Journal	Appl Phys Lett
Volume	79	Issue	13	Pages	2037-2039
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	An epitaxially grown heterostructure consisting of alternating layers of LaMnO3 (8 unit cells) and SrMnO3 (4 unit cells) on a SrTiO3 substrate has been studied by a combination of electron energy-loss spectroscopy (EELS) and high-resolution transmission electron microscopy (HRTEM) on an atomic scale. Excitation edges of all elements are captured with subnanometer spatial accuracy, and parametrized to obtain chemical profiles. The fine-edge structure of O K and Mn L-2,L-3 edges are interpreted as signatures of the local electronic structure and show a spatial modulation of the concentration of holes with O 2p character. The chemical concentration is found to be different for the bottom and top interface of a SrMnO3 layer. HRTEM complements the EELS results and confirms the asymmetry of the interfaces. (C) 2001 American Institute of Physics.
Address
Corporate Author				Thesis
Publisher	American Institute of Physics	Place of Publication	New York, N.Y.	Editor
Language		Wos	000171015200036	Publication Date	2002-07-26
Series Editor		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	19	Open Access
Notes				Approved	Most recent IF: 3.411; 2001 IF: 3.849
Call Number	UA @ lucian @ c:irua:54799UA @ admin @ c:irua:54799			Serial	933
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