Autor: |
Jiachang Liang, Jialong Zhao, Ying Gao |
Rok vydání: |
1995 |
Předmět: |
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Zdroj: |
Journal of Luminescence. 63:41-46 |
ISSN: |
0022-2313 |
DOI: |
10.1016/0022-2313(94)00055-h |
Popis: |
The 1.17, 0.99 and 0.85 eV photoluminescence emission in Gao.5Ino.5P epilayers grown on GaAs substrates by metal-organic chemical vapor deposition have been observed. Only the 1.17 eV emission depends on the ordered structure of Ga0.5In0.5P. A detailed study of the 1.17eV emission has been made at various temperatures and excitation intensities. The 1.17eV emission is interpreted as arising from the recombination of the donor-acceptor pair (DAP), composed of a silicon donor on the gallium sublattice site and a gallium vacancy acceptor as the nearest neighbor. The relationship between the ordered structure and the recombination energy of DAP is examined and a new energy equation for DAP transition is deduced. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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