期刊
ACS APPLIED MATERIALS & INTERFACES
卷 4, 期 11, 页码 6242-6246出版社
AMER CHEMICAL SOC
DOI: 10.1021/am3018338
关键词
counter electrode; CuInS2; poly(styrenesulfonate)-doped poly(3,4-ethylenedioxythiophene); dye-sensitized solar cells; composite film
资金
- National Program on Key Basic Research Project of China (973 Program) [MOST2011CB935700]
- Chinese Academy of Sciences
- National Natural Science Foundation [20901044, 20902052]
- Natural Science Foundation of Shandong Province [ZR2009BM014, ZR2010BM016]
An inorganic/organic nanocomposite comprised of CuInS2 nanocrystals and poly(styrenesulfonate)-doped poly(3,4-ethylenedioxythiophene) (CIS/PEDOT:PSS) was explored as a promising candidate for the counter electrode (CE) in dye-sensitized solar cells (DSCs). Cyclic voltammetry measurements confirmed that this composite electrode exhibited better catalytic activity compared with pristine CuInS2 or PEDOT:PSS electrode. Electrochemical impedance spectroscopy revealed that the composite film constitutes a three-dimensional catalytic network. The DSC using this composite CE can yield 6.50% photoelectric conversion efficiency, which is comparable to that of the conventional platinum CE (6.51%) and better than that of the pristine CuInS2 (5.45%) or PEDOT:PSS (3.22%) electrode.
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