Fabrication and characterization of anodic ZnO nanoparticles

被引：37
作者：
Huang, G. S.
Wu, X. L. [1 ]
Cheng, Y. C.
Shen, J. C.
Huang, A. P.
Chu, P. K.
机构：
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
[3] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2007年 / 86卷 / 04期
关键词：
D O I：
10.1007/s00339-006-3778-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have successfully fabricated ZnO nanoparticles by anodizing Zn sheet in 0.1 M sodium hydroxide solution. Morphology observations demonstrate that the sizes of the ZnO nanoparticles have a tendency to increase with rising anodic voltage. Detailed structural characterizations illuminate that oxygen vacancies exist in the anodic ZnO nanoparticles with wurtzite structure. Photoluminescence from the ZnO nanoparticles exhibits a very broad visible emission band, which can be Gaussian divided into three subbands around 2.4, 2.8, and 3.0 eV. Spectral examinations and analyses reveal that the three subbands are connected with oxygen vacancies, interstitial zinc sites, and the ZnOx matrix, respectively. Our results improve the understanding of the light-emitting mechanism in ZnO nanomaterials.
引用
收藏
页码：463 / 467
页数：5
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