Band parameters and electronic structures of wurtzite ZnO and ZnO∕MgZnO quantum wells
The band structures of wurtzite ZnO are calculated by the empirical pseudopotential method EPM . The eight parameters of the Zn and O atomic pseudopotential form factors are obtained with the formula of Schluter et al. Phys. Rev. B 12, 4200 1975 . The band parameters are extracted by using a k...
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| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/100599 http://hdl.handle.net/10220/18188 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | The band structures of wurtzite ZnO are calculated by the empirical pseudopotential method EPM .
The eight parameters of the Zn and O atomic pseudopotential form factors are obtained with the
formula of Schluter et al. Phys. Rev. B 12, 4200 1975 . The band parameters are extracted by
using a k· p Hamiltonian to fit the EPM results. The calculated band-edge energies Eg, EA, EB, and
EC at the point are in good agreement with the experimental results. Based on the band
parameters obtained, valence subbands of wurtzite ZnO/MgxZn1−xO tensile-strained quantum wells
with different well widths and Mg compositions are calculated by the six-band k· p method. |
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