Time-resolved ultraviolet photoluminescence of ZnO/ZnGa2O 4 composite layer

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

Research output: Contribution to journalArticle

6 Citations (Scopus)

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 languageEnglish
Article number027101
JournalAIP Advances
Volume4
Issue number2
DOIs
Publication statusPublished - 2014 Feb

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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