Melting and optical properties of ZnO nanorods

被引：91

作者：

Su, X ^{[1
]}

Zhang, ZJ ^{[1
]}

Zhu, MM ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Mat Sci & Engn, Adv Mat Lab, Beijing 100084, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 06期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2172716

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We observed that, by heating in air, the ZnO nanorods could start to melt at a temperature of similar to 750 degrees C, which is greatly reduced comparing with that of the bulk form. Prolonged annealing at this temperature resulted in partial melting of individual nanorods and the coalescence of the nanorods with their neighbors, leading to a great change in their optical properties, i.e., a new photoluminescence peak emerged at similar to 468 nm. Further analysis indicated that the new photoluminescence is closely related to the melting and the coalescence of the ZnO nanorods which probably induced some defects by thermal annealing at this temperature. (c) 2006 American Institute of Physics.

引用

页数：3

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