Interband optical absorption in wurtzite MgxZn1−xO/ZnO/MgyZn1−yO asymmetric quantum wells
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- 关键词：Asymmetric ; ZnO/MgZnO quantum well ; Electronic interband optical absorption
- 刊名：Superlattices and Microstructures
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：102
- 期：Complete
- 页码：391-398
- 全文大小：1213 K
- 卷排序：102
文摘
The ternary mixed crystal on interband optical absorption coefficients in wurtzite MgxZn1−xO/ZnO/MgyZn1−yO asymmetric quantum wells have been investigated and shows that the IOAC peak decreases rapidly and presents a blue shift with the increment of Mg component x. Size effect on interband optical absorption coefficients in wurtzite MgxZn1−xO/ZnO/MgyZn1−yO asymmetric quantum wells have been investigated and shows that the absorption peak is more sensitive to the change of the well width than the left barrier size. The built-in electric field and Poisson potential are considered in calculation of theeigenstates and eigenenergies of electrons and holes. Our results could give guidance to the experiments in optical switching and optical communication.