TY - JOUR
T1 - Doping effects in InN/GaN short-period quantum well structures - Theoretical studies based on density functional methods
AU - Strak, Pawel
AU - Kempisty, Pawel
AU - Sakowski, Konrad
AU - Krukowski, Stanislaw
N1 - Funding Information:
This research was supported in part by PL-Grid Infrastructure , calculations were performed using the computing facilities of the Interdisciplinary Centre for Modelling of Warsaw University (ICM UW). The work was partly supported by the Polish National Science Centre on the basis of the decision No. DEC - 2011/03/D/ST3/02071 and No. DEC - 2012/05/B/ST3/03113 .
Publisher Copyright:
© 2014 Elsevier B.V.
PY - 2014/9/1
Y1 - 2014/9/1
N2 - Density functional theory studies were conducted to determine an influence of the carrier concentration on the optical and electronic properties of InN/GaN superlattice system. The oscillator strength values, energy gaps and the band profiles were obtained. The band profiles were found to be strongly affected for technically possible heavy n-type doping while for p-type doping the carrier influence, both screening and band shift, is negligible. Blue shift of the transition energy between conduction band minima and valence band maxima was observed for high concentrations of both type carriers.
AB - Density functional theory studies were conducted to determine an influence of the carrier concentration on the optical and electronic properties of InN/GaN superlattice system. The oscillator strength values, energy gaps and the band profiles were obtained. The band profiles were found to be strongly affected for technically possible heavy n-type doping while for p-type doping the carrier influence, both screening and band shift, is negligible. Blue shift of the transition energy between conduction band minima and valence band maxima was observed for high concentrations of both type carriers.
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U2 - 10.1016/j.jcrysgro.2014.01.069
DO - 10.1016/j.jcrysgro.2014.01.069
M3 - Article
AN - SCOPUS:84906958841
SN - 0022-0248
VL - 401
SP - 652
EP - 656
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
ER -