期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 1, 页码 137-143出版社
AMER CHEMICAL SOC
DOI: 10.1021/am5040522
关键词
SnS2@RGO; nanocomposites; counter electrode; DSSC
资金
- State Key Program for Basic Research of China [2013CB632705]
- National Natural Science Foundation of China [11174002]
- 211 Project of Anhui University
- Anhui Provincial Education Department for Scientific Research of College and Universities [KJ2013A018]
- Youth Foundation of Anhui University in China
A nanocomposite of SnS2 nanoparticles with reduced graphene oxide (SnS2@RGO) had been successfully synthesized as a substitute conventional Pt counter electrode (CE) in a dye-sensitized solar cell (DSSC) system. The SnS2 nanoparticles were uniformly dispersed onto graphene sheets, which formed a nanosized composite system. The effectiveness of this nanocomposite exhibited remarkable electrocatalytic properties upon reducing the triiodide, owning to synergistic effects of SnS2 nanoparticles dispersed on graphene sheet and improved conductivity. Consequently, the DSSC equipped with SnS2@RGO nanocomposite CE achieved power conversion efficiency (PCE) of 7.12%, which was higher than those of SnS2 nanoparticles (5.58%) or graphene sheet alone (3.73%) as CEs and also comparable to the value (6.79%) obtained with pure Pt CE as a reference.
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