Li掺杂ZnO系统的电子结构和光学性质

Xiu-yang SHI,Xi-yu SU,Mei WANG

Chinese Journal of Luminescence(2014)

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Abstract
利用基于密度泛函理论的第一性原理方法,计算了Li掺杂ZnO系统的电子结构和光学性质。结果表明,随着掺杂浓度的增大,带隙线性增大,吸收边蓝移。由于杂质吸收,掺杂系统在可见光区附近产生了新的吸收峰,适度掺杂可以提高可见光的吸收率,改善系统的光催化特性。
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Key words
ZnO,Li doping,electronic structure,optical properties,first-principles
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