標題: Transport Properties of Single Vanadium Oxide Nanowire
作者: Sun, Kien Wen
應用化學系
Department of Applied Chemistry
關鍵字: dielectrophoresis;metal oxide;phase transition;nanowire
公開日期: 2011
摘要: We measured I-V characteristics and electrical resistance, in the temperature range from room temperature to above 600 K in order to obtain nanodevices. Measurements were taken on a single V(2)O(5) nanowire deposited on a Si template, where two-point and four-point metallic contacts were previously made using e-beam lithography. In both two-and four-point probe measurements, the I-V curves were clearly linear and symmetrical with respect to both axes. Drastic reduction in electrical resistance and deviation from single valued activation energy with increasing temperature indicated phase transitions taking place in the nanowire. From temperature-dependent HR-Micro Raman measurements, reductions from V(2)O(5) to VO(2)/V(2)O(3) phases took place at a temperature as low as 500 K, when electrons were injected to the nanowire through electrical contacts. (C) 2011 Published by Elsevier B. V. Selection and/or peer-review under responsibility of Garry Lee.
URI: http://hdl.handle.net/11536/15101
http://dx.doi.org/10.1016/j.phpro.2011.11.004
ISSN: 1875-3892
DOI: 10.1016/j.phpro.2011.11.004
期刊: 2011 INTERNATIONAL CONFERENCE ON PHYSICS SCIENCE AND TECHNOLOGY (ICPST)
Volume: 22
起始頁: 8
結束頁: 13
Appears in Collections:Conferences Paper


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