Correlation between the microstructure and the origin of the green luminescence in ZnO: A case study on the thin films and nanowires

被引：52

作者：

Bera, A. ^{[1
]}

Basak, D. ^{[1
]}

机构：

[1] Indian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, India

来源：

CHEMICAL PHYSICS LETTERS | 2009年 / 476卷 / 4-6期

关键词：

ZINC-OXIDE; PHOTOLUMINESCENCE; FABRICATION; DEFECTS;

D O I：

10.1016/j.cplett.2009.06.049

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The sol-gel nanocrystalline thin film and aqueous chemically grown nanowires (NWs) arrays of ZnO have been used to study the room temperature photoluminescence spectra of the as-grown and annealed samples. In contrast to the thin film, the NWs show a significant change in the green emission at similar to 500 nm compared to the ultraviolet one after the heat treatments in different ambient and temperatures. From the photoluminescence results, the green emission is correlated to the native defect VznZni and the surface defect complex V-zn(-) -H2O those respectively causes the augmentation and suppression of the intensity of the emission. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：262 / 266

页数：5

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