Investigation on the origin of green light emission in ZnO bulk materials
by Jinghai Yang, Lili Yang, Yongjun Zhang, Dandan Wang, Jihui Lang, Qingxiang Zhao
International Journal of Materials and Product Technology (IJMPT), Vol. 34, No. 3, 2009

Abstract: ZnO bulk materials were implanted by O and Zn with different concentration and their photoluminescence (PL) properties were investigated in detail. The results clearly show that O and Zn implantation indeed have great influence on the green light emission. By comparing the PL spectra for the samples with different implantations, O_i, Zn_i and Cu-related defects have been excluded from the possibility of the origin of green light emission step by step. Finally, it can be concluded that V_Zn is responsible to the observed green light emission, which has good agreement with the theoretical results from first principle calculation.

Online publication date: Tue, 14-Apr-2009

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