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

doi:10.1021/acsaem.0c01177

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

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	7121-7128
Number of pages	8
Journal	ACS Applied Energy Materials
Volume	3
Issue number	7
DOIs	https://doi.org/10.1021/acsaem.0c01177
Publication status	Published - 2020 Jul 27

All Science Journal Classification (ASJC) codes

Chemical Engineering (miscellaneous)
Energy Engineering and Power Technology
Electrochemistry
Materials Chemistry
Electrical and Electronic Engineering

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10.1021/acsaem.0c01177

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title = "A Ternary-Mixture-Based Counter Electrode for Quantum-Dot-Sensitized Solar Cells",

abstract = "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.",

author = "Dan Li and Zhiqiang Fu and Qiuchen Han and Lin, {Chen Hsueh} and Shufang Gao and Yan Xiong and Wen, {Ten Chin}",

note = "Funding Information: This work was supported by Grant 11804032 from the National Natural Science Foundation of China, and 201801023A, from the Intellectual Property Office of Hubei Province of China. Publisher Copyright: Copyright {\textcopyright} 2020 American Chemical Society.",

year = "2020",

month = jul,

day = "27",

doi = "10.1021/acsaem.0c01177",

language = "English",

volume = "3",

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journal = "ACS Applied Energy Materials",

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T1 - A Ternary-Mixture-Based Counter Electrode for Quantum-Dot-Sensitized Solar Cells

AU - Li, Dan

AU - Fu, Zhiqiang

AU - Han, Qiuchen

AU - Lin, Chen Hsueh

AU - Gao, Shufang

AU - Xiong, Yan

AU - Wen, Ten Chin

N1 - Funding Information: This work was supported by Grant 11804032 from the National Natural Science Foundation of China, and 201801023A, from the Intellectual Property Office of Hubei Province of China. Publisher Copyright: Copyright © 2020 American Chemical Society.

PY - 2020/7/27

Y1 - 2020/7/27

N2 - 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.

AB - 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.

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

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