The Study of Optical properties of AlInGaN Guatemary Compounds
In this article, optic properties of AlInGaN compounds such as real and imaginary part of dielectric function, optical conductivity, refractive index and extinction index have been investigated. Calculation have performed using Full Potential Linear Approximation Plane Wave method inDensity Functional Theory framework by WIEN2K package.Finally, the optical properties of these compounds were examined which confirmed the results of the electronic and band structures. We also noticed that the VBM of these alloys is higher than the GaN in the fixed band gap. So it is expected that these alloys are doped much easier than P-type semiconductors.
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