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http://dx.doi.org/10.4313/TEEM.2004.5.3.093

Structural and Optoelectronic Properties of SnO2 Nanowires  

Lee, Jong-Soo (Department of Electrical Engineering, Korea University)
Sim, Sung-Kyu (Department of Electrical Engineering, Korea University)
Min, Byung-Don (Department of Electrical Engineering, Korea University)
Cho, Kyoung-Ah (Department of Electrical Engineering, Korea University)
Kim, Sang-Sig (Department of Electrical Engineering, Korea University)
Publication Information
Transactions on Electrical and Electronic Materials / v.5, no.3, 2004 , pp. 93-97 More about this Journal
Abstract
Structural and optoelectronic properties of as-synthesized SnO$_2$ nanowires were examined in this study. The SnO$_2$ nanowires were first synthesized by thermal evaporation of ball-milled SnO$_2$ powders in argon atmosphere without the presence of any catalysts, arid their structural properties are then investigated by X-ray diffraction, Raman scattering, scanning electron microscopy, and transmission electron microscopy. This investigation revealed that the synthesized SnO$_2$ nanowires are single-crystalline and that their growth direction is parallel to the [100] direction. In addition, photoresponse of a single SnO$_2$ nanowire was performed with light with above-gap energy, and different characteristics of photoresponses were obtained for the nanowire at ambient atmosphere and in vacuum. The photoresponse mechanism is briefly discussed in this paper.
Keywords
SnO$_2$nanowire; Photoresponse; TEM;
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