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Evgenia Valcheva
Evgenia Valcheva
Professor, Sofia University
Verified email at phys.uni-sofia.bg
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Cited by
Cited by
Year
Energy position of near-band-edge emission spectra of InN epitaxial layers with different doping levels
B Arnaudov, T Paskova, PP Paskov, B Magnusson, E Valcheva, ...
Physical Review B 69 (11), 115216, 2004
2352004
Large-scale synthesis of free-standing N-doped graphene using microwave plasma
N Bundaleska, J Henriques, M Abrashev, AM Botelho do Rego, ...
Scientific reports 8 (1), 12595, 2018
992018
Towards large-scale in free-standing graphene and N-graphene sheets
E Tatarova, A Dias, J Henriques, M Abrashev, N Bundaleska, E Kovacevic, ...
Scientific reports 7 (1), 10175, 2017
882017
Properties of nonpolar a-plane GaN films grown by HVPE with AlN buffers
T Paskova, V Darakchieva, PP Paskov, J Birch, E Valcheva, POA Persson, ...
Journal of crystal growth 281 (1), 55-61, 2005
812005
Bragg and Laue x-ray diffraction study of dislocations in thick hydride vapor phase epitaxy GaN films
V Ratnikov, R Kyutt, T Shubina, T Paskova, E Valcheva, B Monemar
Journal of Applied Physics 88 (11), 6252-6259, 2000
662000
dielectric function from the midinfrared to the ultraviolet range
A Kasic, E Valcheva, B Monemar, H Lu, WJ Schaff
Physical Review B 70 (11), 115217, 2004
642004
Deformation potentials of the and modes of InN
V Darakchieva, PP Paskov, E Valcheva, T Paskova, B Monemar, ...
Applied physics letters 84 (18), 3636-3638, 2004
572004
Lattice parameters of GaN layers grown on a-plane sapphire: Effect of in-plane strain anisotropy
V Darakchieva, PP Paskov, T Paskova, E Valcheva, B Monemar, ...
Applied physics letters 82 (5), 703-705, 2003
532003
Phonon mode behavior in strained wurtzite superlattices
V Darakchieva, E Valcheva, PP Paskov, M Schubert, T Paskova, ...
Physical Review B 71 (11), 115329, 2005
502005
Multilayer model for Hall effect data analysis of semiconductor structures with step-changed conductivity
B Arnaudov, T Paskova, S Evtimova, E Valcheva, M Heuken, B Monemar
Physical Review B 67 (4), 045314, 2003
492003
Optical and dielectric properties of dc magnetron sputtered AlN thin films correlated with deposition conditions
V Dimitrova, D Manova, E Valcheva
Materials Science and Engineering: B 68 (1), 1-4, 1999
481999
Defect and stress relaxation in HVPE-GaN films using high temperature reactively sputtered AlN buffer
T Paskova, E Valcheva, J Birch, S Tungasmita, POÅ Persson, PP Paskov, ...
Journal of crystal growth 230 (3-4), 381-386, 2001
402001
Interface structure of hydride vapor phase epitaxial GaN grown with high-temperature reactively sputtered AlN buffer
E Valcheva, T Paskova, S Tungasmita, POÅ Persson, J Birch, ...
Applied Physics Letters 76 (14), 1860-1862, 2000
362000
Epitaxial growth and orientation of AlN thin films on Si (001) substrates deposited by reactive magnetron sputtering
E Valcheva, J Birch, PO Persson, S Tungasmita, L Hultman
Journal of applied physics 100 (12), 2006
302006
Hydride vapor-phase epitaxial GaN thick films for quasi-substrate applications: Strain distribution and wafer bending
T Paskova, V Darakchieva, E Valcheva, PP Paskov, IG Ivanov, ...
Journal of electronic materials 33, 389-394, 2004
282004
Hydride Vapour Phase Homoepitaxial Growth of GaN on MOCVD-Grown ‘Templates’
T Paskova, S Tungasmita, E Valcheva, EB Svedberg, B Arnaudov, ...
Materials Research Society Internet Journal of Nitride Semiconductor …, 2000
282000
Nanopipes and their relationship to the growth mode in thick HVPE-GaN layers
E Valcheva, T Paskova, B Monemar
Journal of crystal growth 255 (1-2), 19-26, 2003
252003
Polar and nonpolar GaN grown by HVPE: Preferable substrates for nitride‐based emitting devices
T Paskova, PP Paskov, E Valcheva, V Darakchieva, J Birch, A Kasic, ...
physica status solidi (a) 201 (10), 2265-2270, 2004
232004
Infrared ellipsometry and Raman studies of hexagonal InN films: correlation between strain and vibrational properties
V Darakchieva, PP Paskov, E Valcheva, T Paskova, M Schubert, ...
Superlattices and Microstructures 36 (4-6), 573-580, 2004
192004
Prospects for microwave plasma synthesized N-graphene in secondary electron emission mitigation applications
N Bundaleska, A Dias, N Bundaleski, E Felizardo, J Henriques, ...
Scientific Reports 10 (1), 13013, 2020
182020
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