Graphene/silicon photoelectrode with high and stable photoelectrochemical response in aqueous solution
Graphene/silicon photoelectrode with high and stable photoelectrochemical response in aqueous solution
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石墨烯/硅光电极在水溶液中具有高且稳定的光电化学响应
DOI：
10.1016/j.apsusc.2011.04.015
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发表时间：
2011-06
影响因子：
6.7
通讯作者：
Chen, Shuo
中科院分区：
文献类型：
--
作者：
Wu, Kedi;Quan, Wenying;Yu, Hongtao;Zhao, Huimin;Chen, Shuo
The graphene (Gr)/Si electrodes were fabricated by electrophoresis method and then following an annealing process. The p-Si surface was found to be covered completely with successive and transparent Gr sheets, and thus the impairment of aqueous solution on the photoelectrochemical capability of silicon could be avoided. This annealing process was a key process for improving the adhesion of Gr/Si interface. After annealing at 400 °C, the Gr/Si electrodes displayed high photoresponse ability and high stability in aqueous solution. The carriers transfer between Gr and Si is discussed on the basis of the semiconductor energy band theory. The results demonstrated that the Gr/Si electrodes would be a promising candidate as solar energy materials using in aqueous solution.
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