標題: | Electron transport behavior of individual zinc oxide coated single-walled carbon nanotubes |
作者: | Lin, Chin-Ching Chu, Bryan T. T. Tobias, Gerard Sahakalkan, Serhat Roth, Siegmar Green, Malcolm L. H. Chen, San-Yuan 材料科學與工程學系 Department of Materials Science and Engineering |
公開日期: | 11-Mar-2009 |
摘要: | Uniform zinc oxide coated single-walled nanotubes (SWNTs) were fabricated by ultrasonic irradiation with acid-treated SWNTs, zinc acetate, and triethanolamine at low temperature in aqueous phase processing. The ZnO coating process did not decrease the dark current of the SWNTs, but a real decrease in the steady state negative photocurrent was observed after ZnO coating, suggesting a clear photosensitization effect. Transport measurements reveal that the negative photocurrent in s (semiconducting)-SWNTs@ZnO could be described by electron-hole compensation behavior attributed to the ZnO layer under ultraviolet excitation. This simple coating method for one-dimensional material can open up new possibilities for multifunctional nanodevices. |
URI: | http://dx.doi.org/10.1088/0957-4484/20/10/105703 http://hdl.handle.net/11536/7491 |
ISSN: | 0957-4484 |
DOI: | 10.1088/0957-4484/20/10/105703 |
期刊: | NANOTECHNOLOGY |
Volume: | 20 |
Issue: | 10 |
結束頁: | |
Appears in Collections: | Articles |
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