Time-resolved ultraviolet photoluminescence of ZnO/ZnGa2O4 composite layer | Zendy

Qing Yang | Zendy; Xiaohong Zhou | Zendy; Takao Nukui | Zendy; Yu Saeki | Zendy; Sotaro Izumi | Zendy; Atsushi Tackeuchi | Zendy; Hirokazu Tatsuoka | Zendy; Shuhua Liang | Zendy

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Time-resolved ultraviolet photoluminescence of ZnO/ZnGa2O4 composite layer

Author(s) -

Qing Yang,

Xiaohong Zhou,

Takao Nukui,

Yu Saeki,

Sotaro Izumi,

Atsushi Tackeuchi,

Hirokazu Tatsuoka,

Shuhua Liang

Publication year - 2014

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4864750

Subject(s) - photoluminescence , materials science , ultraviolet , optoelectronics , composite number , layer (electronics) , gallium , spontaneous emission , wide bandgap semiconductor , excitation , luminescence , composite material , optics , metallurgy , laser , physics , electrical engineering , engineering

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 D0X 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

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