Calculation of Direct E0 Energy Gaps for III–V–Bi Alloys Using Quantum Dielectric Theory
A mathematical model based on Quantum Dielectric Theory has been used to calculate the direct E0 energy gaps of bismuth containing ternary alloys. The variation of E0 with x for In Sb1–xBix and GaSb1–xBix are in good agreement with the experimental results. The composition dependence of E0 at different temperatures is also found out for some other ternary alloys like InPBi and AlSbBi.
KeywordsDirect band gap QDT and covalent radius
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The work was supported by the Department of Science and Technology, Government of India under joint project with the Centre for Materials for Electronic Technology, Hyderabad.
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