A Ternary-Mixture-Based Counter Electrode for Quantum-Dot-Sensitized Solar Cells

Dan Li, Zhiqiang Fu, Qiuchen Han, Chen Hsueh Lin, Shufang Gao, Yan Xiong, Ten Chin Wen

研究成果: Article同行評審

摘要

A ternary mixture of carbon, copper sulfide, and cobalt sulfide was used to fabricate the counter electrode (CE) in quantum-dot-sensitized solar cells (QDSSCs). The ternary-mixture-based CE achieved much higher energy conversion efficiency than any CE based on the individual material. The mixture and the CE were investigated by photocurrent density-voltage characteristics, X-ray diffraction patterns, electrochemical impedance spectroscopy, and contour line plots. A balanced mix results in enhanced photocurrent and reduced charge transfer resistance at the interface, and this leads to optimized device performance. The highest photoelectric conversion efficiency was 3.73% at a 1:1:1 mass ratio. The efficiency was as high as 3.09% via a corresponding flexible CE.

原文English
頁(從 - 到)7121-7128
頁數8
期刊ACS Applied Energy Materials
3
發行號7
DOIs
出版狀態Published - 2020 七月 27

All Science Journal Classification (ASJC) codes

  • 化學工程(雜項)
  • 能源工程與電力技術
  • 電化學
  • 電氣與電子工程
  • 材料化學

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