Abstract
The ultraviolet photoluminescence of ZnO/ZnGa2O4 composite layer grown by the thermal oxidation of ZnS with gallium was investigated by the time-resolved photoluminescence as a function of measuring temperature and excitation power. With increase of excitation power, the D 0X emission is easily saturated than the DAP emission from ZnO/ZnGa2O4 composite layer, and which is dramatically enhanced as compared with that from pure ZnO layer grown without gallium. The radiative recombination process with ultra-long lifetime controlled the carrier recombination of ZnO/ZnGa2O4 composite layer.
Original language | English |
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Article number | 027101 |
Journal | AIP Advances |
Volume | 4 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2014 Feb |
ASJC Scopus subject areas
- Physics and Astronomy(all)