期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 20, 期 28, 页码 8670-8676出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201402657
关键词
dye-sensitized solar cells; efficient counter electrode; nanostructures; photochemistry; SnS2 nanosheets
资金
- Australian Research Council (ARC)
- Chinese Scholarship Council (CSC)
A new type of semitransparent SnS2 nanosheet (NS) films were synthesized using a simple and environmentally friendly solution-processed approach, which were subsequently used as a counter electrode (CE) alternative to the noble metal Pt for triiodide reduction in dye-sensitized solar cells (DSSCs). The resultant SnS2-based CE with a thickness of about 300 nm exhibited excellent electrochemical catalytic activity for catalyzing the reduction of triiodide and demonstrated comparable power conversion efficiency of 7.64% with that of expensive Pt-based CE in DSSCs (7.71 %). When functionalized with a small amount of carbon nanoparticles, the SnS2 NS-based CE showed even better performance of 8.06% than Pt under the same conditions. Considering the facile fabrication method, optical transparency, low cost, and remarkable catalytic property, this study on SnS2 NSs may shed light on the large-scale production of electrocatalytic electrode materials for low-cost photovoltaic devices.
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