Abstract
Rational design of advanced cost-effective counter electrode (CE) is vital for the development of dye-sensitized solar cells (DSSCs). Herein, we report a novel CoS/reduced graphene oxide (CoS/rGO) composite counter electrode via a facile and rapid microwave irradiation plus ion exchange method. CoS nanoparticles are strongly anchored on three-dimensional (3D) porous rGO thin films. Due to positive advantages including high catalytic properties, enhanced active area, and electrical conductivity, the DSSC based on CoS/rGO counter electrode is endowed with a power conversion efficiency (PCE) of 6.86%, superior to that based on sputtered Pt counter electrode (6.50%). Our results indicate that CoS/rGO composite thin film is a low-cost and highly efficient CE for DSSCs.
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Acknowledgements
We acknowledge the financial supports from the Science and Technology Program of Guangdong Province of China (No. 2016A010104020), the Training Plan of Outstanding Young Teachers of Universities in Guangdong Province (Grant No. YQ2015055), Pearl River S&T Nova Program of Guangzhou (Grant No. 201610010116), and The Open Project of Guangdong Province Key Lab of Display Material and Technology (Grant No. 2017B030314031).
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Liu, J., Yang, W., Wei, A. et al. Anchoring CoS on three-dimensional porous rGO thin films as efficient counter electrodes for dye-sensitized solar cells. J Mater Sci: Mater Electron 31, 22546–22553 (2020). https://doi.org/10.1007/s10854-020-04765-x
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DOI: https://doi.org/10.1007/s10854-020-04765-x