Behind the change of the photoluminescence property of metal-coated ZnO nanowire arrays

被引：143

作者：

Fang, Y. J.

Sha, J. ^{[1
]}

Wang, Z. L.

Wan, Y. T.

Xia, W. W.

Wang, Y. W.

机构：

[1] Zhejiang Univ, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 03期

基金：

中国国家自然科学基金;

关键词：

EMISSION; ENHANCEMENT; FILMS;

D O I：

10.1063/1.3543902

中图分类号：

O59 [应用物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

The effect of metal coating on the photoluminescence (PL) properties of ZnO nanowire arrays has been investigated in detail in this letter. The Zn coating induces remarkable enhancement of the ultraviolet and green emissions of the nanowires, while the deposition of Ag leads to notable decrement of them. A model considering the type of contacts formed between metals and ZnO is proposed to interpret the change of the PL spectra. Also, this model is strongly supported by the PL variation of the nanowires after coating with other kinds of metals. (c) 2011 American Institute of Physics. [doi:10.1063/1.3543902]

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页数：3

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