Journal
NANO ENERGY
Volume 13, Issue -, Pages 182-191Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nanoen.2015.02.018
Keywords
Embedded structure; Dye-sensitised solar cell; Tandem cell; Transparency; Solar-to-hydrogen efficiency
Categories
Funding
- NRF of Korea Grant - Ministry of Science, ICT and Future Planning [NRF-2013R1A2A1A09014038]
Ask authors/readers for more resources
Achieving the spontaneous evolution of hydrogen from photoelectrochemical (PEC) cells in water using solar light is a desirable but difficult goal. Here, we report a highly efficient wireless monolithic tandem device composed of bipolar highly transparent BiVarsensitised mesoporous WO3 films/ Pt and a porphyrin-dye-based photoelectrode achieving 5.7% without any external bias. A sandwich infiltration process was used to produce a thin BiVO4 layer coated onto mesoporous WO3 films while preserving high transparency, enabling high photonic flux into the second dye-sensitised photoanode. In addition, the porphyrin -dye-sensitised photoanode with a cobalt electrolyte generated sufficient bias, realising highly efficient unassisted solar water splitting in the tandem cells. By combining the highly transparent BiVO4-sensitised mesoporous WO3 films with the state-of-the-art water oxidation catalyst and a single dye-sensitised solar cell with a high open circuit potential in a monolithic tandem configuration, an extraordinarily high solar-to-hydrogen (5TH) conversion efficiency with spontaneous hydrogen evolution was obtained. (C) 2015 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available