• Title/Summary/Keyword: Band Anti-Crossing Model

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The Calculation of the Energy Band Gaps of Zincblende InAs1-X NX on Temperature and Composition (온도 및 조성비 변화에 따른 질화물계 화합물 반도체 InAs1-X NX의 에너지 밴드갭 계산)

  • Chung, Ho-Yong;Kim, Dae-Ik
    • The Journal of the Korea institute of electronic communication sciences
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    • v.11 no.12
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    • pp.1165-1174
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    • 2016
  • The energy band gaps and the bowing parameters of zincblende InAs1-xN are determined by using an empirical pseudopotential method(EPM) within the improved virtual crystal approximation(VCA), which includes the disorder effect. The direct-band-gap bowing parameter calculated by using the EPM is 4.1eV for InAs1-xNx ($0{\leq}x{\leq}0.05$). The dependences of the band gaps of N-dilute InAs1-xNx on the temperature and composition are calculated by modifying the band anti-crossing(BAC) model. The calculation results are consistent with experimental values, and the coupling parameter CMN of InAs1-xNx is found to be equal to 1.8 by fitting the EPM data.