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Chinese Academy of Sciences Institutional Repositories Grid
The electronic structure of strained ZnO/MgxZn1-xO superlattices and the influence of polarization

文献类型:期刊论文

作者Xiong W ; Li SS
刊名physica e-low-dimensional systems & nanostructures
出版日期2009
卷号41期号:3页码:506-512
关键词ZnO ZnO/MgxZn1-xO superlattice Electronic structure Polarization
ISSN号1386-9477
通讯作者xiong w chinese acad sci inst semicond state key lab superlattices & microstruct pob 912 beijing 100083 peoples r china. e-mail address: wenxiong@semi.ac.cn
中文摘要based on the effective-mass model, the lower energies of the electron and the hole of zno/mgxzn1-xo superlattices are calculated. because of the mismatch of the lattice constant between the zno well and the mgxzn1-xo barrier, piezoelectric and spontaneous polarization exist in zno/mgxzn1-xo superlattices and a macroscopical internal electric held is found when well width l-w >4 nm and mg concentration x > 0.2. the parameters of zno/mgxzn1-xo superlattices such as lattice constant, band offset, etc. are also proposed. through calculations, we found the internal electric field can change the lowest energies of the electron and hole to 105.4 and 85.1 mev when well width l-w up to 70 angstrom, which will influence the electronic and optical properties of zno/mgxzn1-xo superlattices greatly, while the rashba effect from the internal electric field is so small that it can be neglected. the ground state exciton energies with different mg concentration x are also calculated by variational method, our results are very close to the experimental results when mg concentration x <= 0.3. (c) 2008 elsevier b.v. all rights reserved.
学科主题半导体物理
收录类别SCI
语种英语
公开日期2010-03-08
源URL[http://ir.semi.ac.cn/handle/172111/7379]  
专题半导体研究所_中国科学院半导体研究所(2009年前)
推荐引用方式
GB/T 7714
Xiong W,Li SS. The electronic structure of strained ZnO/MgxZn1-xO superlattices and the influence of polarization[J]. physica e-low-dimensional systems & nanostructures,2009,41(3):506-512.
APA Xiong W,&Li SS.(2009).The electronic structure of strained ZnO/MgxZn1-xO superlattices and the influence of polarization.physica e-low-dimensional systems & nanostructures,41(3),506-512.
MLA Xiong W,et al."The electronic structure of strained ZnO/MgxZn1-xO superlattices and the influence of polarization".physica e-low-dimensional systems & nanostructures 41.3(2009):506-512.

入库方式: OAI收割

来源:半导体研究所

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