Integration of inverse nanocone array based bismuth vanadate photoanodes and bandgap-tunable perovskite solar cells for efficient self-powered solar water splitting
Publication in refereed journal

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摘要Bismuth vanadate (BiVO4) has been regarded as a promising photoanode material for photoelectrochemical (PEC) water splitting owing to its rich elemental abundance and relatively narrow bandgap. However, the incompatibility of the penetration depth and short diffusion length limits its performance. To overcome this shortcoming, we develop a cost-effective stamping method to fabricate inverse nanocone array (ICA) substrates for supporting nanoporous Mo-doped BiVO4 films. The ICAs show a remarkable light trapping effect in such a way that the intensive light absorption region is advantageously shifted from the top of the active layer on a planar substrate to the bottom surrounded by the ICA, where charge separation is strikingly more efficient. By integrating the ICA-photoanode with a tailor-made, bandgap-adjustable perovskite solar cell, we devised a PEC-photovoltaic (PEC-PV) tandem device, which has achieved a self-powered STH efficiency of around 6.3%. Our study opens a new avenue for designing solar fuel devices with PEC-PV architectures.
出版社接受日期14.08.2017
著者Shuang Xiao, Chen Hu, He Lin, Xiangyue Meng, Yang Bai, Teng Zhang, Yinglong Yang, Yongquan Qu, Keyou Yan, Jianbin Xu, Yongcai Qiu, Shihe Yang
期刊名稱Journal of Materials Chemistry A
出版年份2017
月份9
日期28
卷號5
期次36
頁次19091 - 19097
國際標準期刊號2050-7488
電子國際標準期刊號2050-7496
語言英式英語

上次更新時間 2020-21-11 於 02:26