| Title | Integration of inverse nanocone array based bismuth vanadate photoanodes and bandgap-tunable perovskite solar cells for efficient self-powered solar water splitting |
| Authors | Xiao, Shuang Hu, Chen Lin, He Meng, Xiangyue Bai, Yang Zhang, Teng Yang, Yinglong Qu, Yongquan Yan, Keyou Xu, Jianbin Qiu, Yongcai Yang, Shihe |
| Affiliation | Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China. Peking Univ, Shenzhen Grad Sch, Sch Chem Biol & Biotechnol, Guangdong Key Lab Nanomicro Mat Res, Shenzhen, Peoples R China. Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, Joint Sch Sustainable Dev, Yan Xiang Rd, Xian, Shaanxi, Peoples R China. Chinese Univ Hong Kong, Dept Elect Engn, Shatin, Hong Kong, Peoples R China. South China Univ Technol, Coll Environm & Energy, Guangzhou, Guangdong, Peoples R China. Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China. Yang, SH (reprint author), Peking Univ, Shenzhen Grad Sch, Sch Chem Biol & Biotechnol, Guangdong Key Lab Nanomicro Mat Res, Shenzhen, Peoples R China. Qiu, YC (reprint author), Chinese Univ Hong Kong, Dept Elect Engn, Shatin, Hong Kong, Peoples R China. Qiu, YC (reprint author), South China Univ Technol, Coll Environm & Energy, Guangzhou, Guangdong, Peoples R China. |
| Keywords | PERFORMANCE CRYSTALLIZATION PHOTOVOLTAICS EXTRACTION STABILITY OXIDATION CATALYSTS ELECTRODE PROGRESS |
| Issue Date | 2017 |
| Publisher | JOURNAL OF MATERIALS CHEMISTRY A |
| Citation | JOURNAL OF MATERIALS CHEMISTRY A.2017,5(36),19091-19097. |
| Abstract | 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. |
| URI | http://hdl.handle.net/20.500.11897/470746 |
| ISSN | 2050-7488 |
| DOI | 10.1039/c7ta06309a |
| Indexed | SCI(E) |
| Appears in Collections: | 化学生物学与生物技术学院 |
