Highly efficient orange emission in ZnO:Se nanorods

被引：9

作者：

Sun, Luwei ^{[1
]}

He, Haiping ^{[1
]}

Liu, Chao ^{[1
]}

Ye, Zhizhen ^{[1
]}

机构：

[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2010年 / 108卷 / 12期

基金：

美国国家科学基金会;

关键词：

OPTICAL-PROPERTIES; ZINC-OXIDE; EXCITONIC EMISSION; NANOWIRE ARRAYS; GREEN EMISSION; PHOTOLUMINESCENCE; LUMINESCENCE; NANOSTRUCTURES; FABRICATION; CRYSTALS;

D O I：

10.1063/1.3524538

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The origin of the visible emissions in ZnO nanostructures is a long-standing issue. In this work, a strong orange emission around 2.1 eV in ZnO: Se nanorods is reported. Temperature-dependent photoluminescence (PL) and PL decay results indicate that radiative recombination dominates the overall decay process, leading to highly efficient orange emission at room temperature. It is proposed that Se acts as isoelectronic centers and no evidence of ZnO1-xSex alloy formation is found. Based on the PL excitation results, we propose a Se-induced impurity band model to describe the photophysics of the orange emission. (C) 2010 American Institute of Physics. [doi:10.1063/1.3524538]

引用

页数：4

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