Room-temperature green and ultraviolet emission from different grain sized Mn2O3 nanocrystals

被引：7

作者：

Chen, ZW ^{[1
]}

Zhang, SY ^{[1
]}

Tan, S ^{[1
]}

Wang, J ^{[1
]}

Jin, SZ ^{[1
]}

Hou, JG ^{[1
]}

机构：

[1] Univ Sci & Technol China, Struct Res Lab, Hefei 230026, Anhui, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE LETTERS | 2002年 / 21卷 / 05期

关键词：

D O I：

10.1023/A:1014931923418

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An overview is given on the results of green and ultraviolet emission spectra and high-resolution electron micrograph studies which reveal the grain sizes of chemical liquid homogeneous precipitation (CLHP) prepared Mn2O3 nanocrystals' effect on green and ultraviolet emission spectra under the same excitation conditions. It is shown that the intensities of the green and ultraviolet emissions depend on the grain sizes of Mn2O3 nanocrystals. A possible process for the peak intensity decreasing is discussed. Experimental results and spectral analyses suggest that the mechanism responsible for the green and ultraviolet emission is the existence of the surface oxygen dangling bonds.

引用

页码：411 / 413

页数：3

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