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One step synthesis of vertically aligned ZnO nanowire arrays with tunable length |
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| Authors: | Gang Meng Xiaodong Fang Weiwei Dong Ruhua Tao Yiping Zhao Shu Zhou Liang Li |
| Affiliation: | a Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China b Key Laboratory of New Thin Film Solar Cells, Chinese Academy of Sciences, Hefei 230031, China c Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China |
| Abstract: | Length control of ZnO nanowire arrays is a valuable concern for both fundamental research and future device application. In this article, vertically aligned ZnO nanowire arrays were synthesized by a seed layer catalyzed vapor phase transport method in a single experiment cycle. The length of these nanowire arrays exhibits a quasi-continuous evolution. It was found that the type and flow rate of carrier gas have a significant influence on the length modulation of ZnO arrays along the tube. A feasible route to tune the length of ZnO nanowire arrays from several micrometers to nearly 100 μm could be achieved by adjusting proper deposition position and carrier gas. |
| Keywords: | ZnO nanowire arrays Vapor phase transport Length tuning |
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