Effect of the defect on photoluminescence property of Al-coated ZnO nanostructures

被引:14
作者
Fang, Yanjun [1 ,2 ]
Wang, Yewu [1 ,2 ]
Gu, Lin
Lu, Ren [1 ,2 ]
Sha, Jian [1 ,2 ]
机构
[1] Zhejiang Univ, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China
[2] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China
基金
中国国家自然科学基金;
关键词
LUMINESCENCE; EVAPORATION; MECHANISM; GROWTH;
D O I
10.1364/OE.21.003492
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The room-temperature photoluminescence (PL) spectra of hydrothermal grown ZnO film and nanowires coated with Al are investigated, which exhibit much less UV emission enhancement ratio as against that of nanowires fabricated by thermal evaporation method. A model is suggested at last to interpret the experimental results considering the influence of the defect on the contact property between metal and ZnO, which is further evidenced by the weak PL enhancement ratio of thermal evaporation grown ZnO nanowires with H2O2 treatment. (C) 2013 Optical Society of America
引用
收藏
页码:3492 / 3500
页数:9
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