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Adding a Third Comp...
Adding a Third Component with Reduced Miscibility and Higher LUMO Level Enables Efficient Ternary Organic Solar Cells
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- Ma, Ruijie (author)
- Hong Kong University of Science and Technology
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- Liu, Tao (author)
- Hong Kong University of Science and Technology
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- Luo, Zhenghui (author)
- Wuhan University,Hong Kong University of Science and Technology
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- Gao, Ke (author)
- City University of Hong Kong,University of Washington
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- Chen, Kai (author)
- Xi'an Jiaotong University
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Zhang, Guangye (author)
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- Gao, Wei (author)
- City University of Hong Kong,Wuhan University
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- Xiao, Yiqun (author)
- Chinese University of Hong Kong
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- Lau, Tsz-Ki (author)
- Chinese University of Hong Kong
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- Fan, Qunping, 1989 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Chen, Yuzhong (author)
- Hong Kong University of Science and Technology
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- Ma, Lik-Kuen (author)
- Hong Kong University of Science and Technology
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- Sun, Huiliang (author)
- Hong Kong University of Science and Technology
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- Cai, Guilong (author)
- Chinese University of Hong Kong
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- Yang, Tao (author)
- Universidade de Aveiro,University of Aveiro
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- Lu, Xinhui (author)
- Chinese University of Hong Kong
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- Wang, Ergang, 1981 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Yang, Chuluo (author)
- Wuhan University
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- Jen, Alex K-Y (author)
- City University of Hong Kong,University of Washington
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- Yan, He (author)
- Hong Kong University of Science and Technology
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(creator_code:org_t)
- 2020-08-03
- 2020
- English.
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In: ACS Energy Letters. - : American Chemical Society (ACS). - 2380-8195. ; 5:8, s. 2711-2720
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Abstract
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- It is widely known that the miscibility between donor and acceptor is a crucial factor that affects the morphology and thus device performance of nonfullerene organic solar cells (OSCs). In this Letter, we show that incorporating a third component with lower miscibility and higher lowest unoccupied molecular orbital (LUMO) level into the state-of-the-art PM6:Y6 system can significantly enhance the performance of devices. The best results of the ternary devices are achieved by adding a small molecular acceptor named ITCPTC (similar to 5% w/w), which significantly improves the power conversion efficiency (PCE) of the host system from 16.44% to 17.42%. The higher LUMO of the third component increases the open-circuit voltage (V-oc), while the low miscibility enlarges the domains and leads to improved short-circuit current density (J(sc)) and fill factor (FF). The efficacy of this strategy is supported by using other nonfullerene third components including an asymmetric small molecule (N7IT) and a polymer acceptor (PF2-DTC), which play the same role as ITCPTC and boost the PCEs to 16.96% and 17.04%, respectively. Our approach can be potentially applied to a wide range of OSC material systems and should facilitate the development of the OSC field.
Subject headings
- NATURVETENSKAP -- Data- och informationsvetenskap -- Programvaruteknik (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Software Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Inbäddad systemteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Embedded Systems (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
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- ref (subject category)
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- By the author/editor
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Ma, Ruijie
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Liu, Tao
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Luo, Zhenghui
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Gao, Ke
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Chen, Kai
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Zhang, Guangye
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show more...
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Gao, Wei
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Xiao, Yiqun
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Lau, Tsz-Ki
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Fan, Qunping, 19 ...
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Chen, Yuzhong
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Ma, Lik-Kuen
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Sun, Huiliang
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Cai, Guilong
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Yang, Tao
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Lu, Xinhui
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Wang, Ergang, 19 ...
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Yang, Chuluo
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Jen, Alex K-Y
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Yan, He
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Computer and Inf ...
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and Software Enginee ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Electrical Engin ...
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and Embedded Systems
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Electrical Engin ...
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and Other Electrical ...
- Articles in the publication
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ACS Energy Lette ...
- By the university
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Chalmers University of Technology