First Principles Study on Electronic Structure and Optical Properties of Ternary GaAs:Bi Alloy

The electronic structure and optical properties of ternary GaAs:Bi alloy are investigated by first principles calculations. It is found that the band gap of GaAs1-xBix decreases monotonously with the increasing of Bi concentration, resulting in the fundamental absorption edge and main absorption pea...

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Bibliographic Details
Main Authors: Kejian Yang, Guiqiu Li, Shengzhi Zhao, Dechun Li, Lifei Yu
Format: Article
Language:English
Published: MDPI AG 2012-11-01
Series:Materials
Subjects:
Online Access:http://www.mdpi.com/1996-1944/5/12/2486