0462542 - FZÚ 2017 RIV US eng J - Journal Article
Bartoš, Igor - Romanyuk, Olexandr - Houdková, Jana - Paskov, P.P. - Paskova, T. - Jiříček, Petr
Electron band bending of polar, semipolar and non-polar GaN surfaces.
Journal of Applied Physics. Roč. 119, č. 10 (2016), 1-7, č. článku 105303. ISSN 0021-8979. E-ISSN 1089-7550
R&D Projects: GA ČR GA15-01687S
Grant - others:AVČR(CZ) M100101201
Institutional support: RVO:68378271
Keywords : GaN * XPS * band bending
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 2.068, year: 2016 ; AIS: 0.582, rok: 2016
DOI: https://doi.org/10.1063/1.4943592

The Ga 3d core level peak shifts have been used for band bending determination of polar, non-polar and semipolar GaN. Small band bending magnitudes and also relatively small difference between the band bendings of the surfaces with opposite polarity have been found. These results point to the presence of electron surface states of different amounts and types on surfaces of different polarity and confirm the important role of the electron surface states in compensation of the bound surface polarity charges in wurtzite GaN crystals.
Permanent Link: http://hdl.handle.net/11104/0261980