Effects of substrates and seed layers on solution growing ZnO nanorods |
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Authors: | Zhifeng Liu Jing Ya Lei E |
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Institution: | (1) School of Chemical Engineering and Technology, Tianjin University, 300072 Tianjin, China;(2) Department of Materials Science and Engineering, Tianjin Institute of Urban Construction, 300384 Tianjin, China |
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Abstract: | Oriented ZnO nanorods were fabricated in a two-step approach, including the synthesis of seed layer on different substrates
and the growth of ZnO nanorods in aqueous solutions of zinc nitrate and hexamethylenetetramine at low temperature. The effects
of seed layer synthesized by different methods, sol–gel method and electrochemical deposition method, on the orientation and
morphologies of ZnO nanorods were compared in detail. The optimal parameters for the growth of highly oriented ZnO nanorod
arrays were found and the forming mechanism was also disclosed. Furthermore, as an application of the ZnO nanorod film, dye-sensitized
solar cells based on it were successfully fabricated. The cell performances of ZnO nanorods grown on ED-ZnO seed layer deposited
at −700 mV were higher than those with SG-ZnO seed layer due to good nanostructure. |
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