Observation of ultraviolet emission and effect of surface states on the luminescence from tin oxide nanowires

被引：64
|
作者：
Kar, Ayan [1 ]
Stroscio, Michael A. [1 ,2 ,3 ]
Dutta, Mitra [1 ,2 ]
Kumari, Jyoti [4 ]
Meyyappan, M. [4 ]
机构：
[1] Univ Illinois, Dept Elect & Comp Engn, Chicago, IL 60607 USA
[2] Univ Illinois, Dept Phys, Chicago, IL 60607 USA
[3] Univ Illinois, Dept Bioengn, Chicago, IL 60607 USA
[4] NASA, Ames Res Ctr, Ctr Nanotechnol, Moffett Field, CA 94035 USA
来源：
APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 10期
关键词：
binding energy; impurity states; nanowires; photoluminescence; semiconductor materials; semiconductor quantum wires; surface states; tin compounds; TEMPERATURE-DEPENDENCE; SNO2; PHOTOLUMINESCENCE;
D O I：
10.1063/1.3097011
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Ultraviolet (UV) and orange emissions have been observed from vapor-liquid-solid grown SnO(2) nanowires. From the luminescence, the donor and acceptor binding energies have been estimated. The dependence of the orange luminescence on the diameters of tin oxide nanowires has been observed and the wavelength of the UV luminescence is found to depend on the laser power. Both the shift in the UV and the intensity of the orange luminescence is found to be dependent on the surface states of the tin oxide nanowires.
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页数：3
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