Title |
Investigation on the photoconductive behaviors of an individual AlN nanowire under different excited lights
|
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Published in |
Discover Nano, August 2012
|
DOI | 10.1186/1556-276x-7-454 |
Pubmed ID | |
Authors |
Fei Liu, Lifang Li, Tongyi Guo, Haibo Gan, Xiaoshu Mo, Jun Chen, Shaozhi Deng, Ningsheng Xu |
Abstract |
Ultra-long AlN nanowire arrays are prepared by chemical vapor deposition, and the photoconductive performances of individual nanowires are investigated in our self-built measurement system. Individual ultra-long AlN nanowire (UAN) exhibits a clear photoconductive effect under different excited lights. We attribute the positive photocurrent response of individual UAN to the dominant molecular sensitization effect. It is found that they have a much faster response speed (a rise and decay time of about 1 ms), higher photocurrent response (2.7×106), and more reproductive working performance (the photocurrent fluctuation is lower than 2%) in the air environment. Their better photoconductive performances are comparable to many nanostructures, which are suggested to be a candidate for building promising photosensitive nanodevices in the future. |
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