CdTe和CdZnTe电子结构及成键机理的第一性原理研究
Journal of Synthetic Crystals（2016）
Abstract
采用基于密度泛函理论的CASTEP程序软件包,计算了CdTe和CdZnTe的能带结构和态密度,研究对比了CdTe 和CdZnTe的分子内成键机制.结果表明,在CdZnTe中,Cd eg和Te 5s杂化形成较低的价带,Zn t2g和Te 5pz杂化形成的π键等构成中间价带,Zn 4s和Te 5pz杂化形成的σ键等构成导带.Cd 5s和Te 5s不再杂化,导带底向高能级方向移动.
MoreKey words
CdTe,CdZnTe,band structure,density of states,electronic structure
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