期刊
ACS APPLIED MATERIALS & INTERFACES
卷 5, 期 17, 页码 8289-8293出版社
AMER CHEMICAL SOC
DOI: 10.1021/am402856z
关键词
dye-sensitized solar cell; gel electrolyte; pore filling; ion transport; carbon nanotube; electrode
资金
- CUHK Group Research Scheme
- CUHK Focused Scheme B Grant Center for Solar Energy Research
- GRF of RGC [414710]
- [2060437]
We demonstrate the enhancement of pore-filling and wettability of gel electrolyte in quasi-solid-state dye-sensitized solar cells (DSSCs) by developing a kinetically driven electrolyte infiltration approach, in which the air purging provides the driving force. This method renders fast electrolyte diffusion throughout the three-dimensional TiO2 nanoparticle network, promising for large-area device fabrication. In addition, for the first time we incorporate multiwalled carbon nanotubes into the anode of quasi-solid-state DSSCs to improve the charge transfer efficiency and fill factor. These advancements finally generate an efficiency exceeding 7.0%, much higher than the device efficiency of 5.5% fabricated by the conventional method.
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