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Large band gap bowing of InxGa1−xN alloys
1998
Applied Physics Letters
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Band gap measurements have been performed on strained In x Ga 1Ϫx N epilayers with xр0.12. The experimental data indicate that the bowing of the band gap is much larger than commonly assumed. We have performed first-principles calculations for the band gap as a function of alloy composition and find that the bowing is strongly composition dependent. At xϭ0.125 the calculated bowing parameter is bϭ3.5 eV, in good agreement with the experimental values.
doi:10.1063/1.121072
fatcat:nt6lcggvdvf7tmvuts57a3ntmy