The Factors Influencing the Band Gap Bowing of III Nitride Alloys

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In the paper, the factors influencing the band gap bowing of the bulk alloy with random distribution are analyzed and it is found that the bowing coefficient is compositional dependent. The reasons for the large dispersion of the bowing coefficient are also analyzed. In addition, we obtained the bowing coefficient (b=2.26+5.04x) for InAlN by fitting the experimental data.

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