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Nonconjugated Terpo...
Nonconjugated Terpolymer Acceptors with Two Different Fused-Ring Electron-Deficient Building Blocks for Efficient All-Polymer Solar Cells
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- Su, Wenyan (author)
- Karlstads universitet,Institutionen för ingenjörsvetenskap och fysik (from 2013),Jinan University, CHN; Chalmers tekniska högskola,Karlstad University,Chalmers tekniska högskola,Chalmers University of Technology
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- Fan, Qunping, 1989 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Jalan, Ishita, 1991- (author)
- Karlstads universitet,Institutionen för ingenjörs- och kemivetenskaper (from 2013),Karlstad University
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- Wang, Yufei (author)
- Jinan University, CHN
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- Peng, Wenhong (author)
- Chalmers tekniska högskola; Changzhou University, CHN,Chalmers tekniska högskola,Chalmers University of Technology,Changzhou University
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- Guo, Tao (author)
- Chalmers tekniska högskola; Henan University of Technology, CHN,Henan University of Technology,Chalmers tekniska högskola,Chalmers University of Technology
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- Zhu, Weiguo (author)
- Chalmers tekniska högskola; Changzhou University, CHN,Changzhou University
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- Yu, Donghong (author)
- Aalborg University, DNK; SinoDanish Center for Education and Research, DNK,Aalborg Universitet
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- Hou, Lintao (author)
- Jinan University, CHN
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- Moons, Ellen, professor, 1966- (author)
- Karlstads universitet,Institutionen för ingenjörsvetenskap och fysik (from 2013),Karlstad University
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- Wang, Ergang, 1981 (author)
- Chalmers tekniska högskola; Zhengzhou University, CHN,Zhengzhou University,Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2021-01-26
- 2021
- English.
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In: ACS Applied Materials and Interfaces. - : American Chemical Society (ACS). - 1944-8244 .- 1944-8252. ; 13:5, s. 6442-6449
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Abstract
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- The ternary polymerization strategy of incorporating different donor and acceptor units forming terpolymers as photovoltaic materials has been proven advantageous in improving power conversion efficiencies (PCEs) of polymer solar cells (PSCs). Herein, a series of low band gap nonconjugated terpolymer acceptors based on two different fused-ring electron-deficient building blocks (IDIC16 and ITIC) with adjustable photoelectric properties were developed. As the third component, ITIC building blocks with a larger pi-conjugation structure, shorter solubilizing side chains, and red-shifted absorption spectrum were incorporated into an IDIC16-based nonconjugated copolymer acceptor PF1-TS4, which built up the terpolymers with two conjugated building blocks linked by flexible thioalkyl chain-thiophene segments. With the increasing ITIC content, terpolymers show gradually broadened absorption spectra and slightly down-shifted lowest unoccupied molecular orbital levels. The active layer based on terpolymer PF1-TS4-60 with a 60% ITIC unit presents more balanced hole and electron mobilities, higher photoluminescence quenching efficiency, and improved morphology compared to those based on PF1-TS4. In all-polymer solar cells (all-PSCs), PF1-TS4-60, matched with a wide band gap polymer donor PM6, achieved a similar open-circuit voltage (V-oc) of 0.99 V, a dramatically increased short-circuit current density (J(sc)) of 15.30 mA cm(-2), and fill factor (FF) of 61.4% compared to PF1-TS4 = 0.99 V, J(sc) = 11.21 mA cm(-2), and FF = 55.6%). As a result, the PF1-TS4-60-based all-PSCs achieved a PCE of 9.31%, which is similar to 50% higher than the PF1-TS4-based ones (6.17%). The results demonstrate a promising approach to develop high-performance nonconjugated terpolymer acceptors for efficient all-PSCs by means of ternary polymerization using two different A-D-A-structured fused-ring electron-deficient building blocks.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- all polymer solar cells
- copolymer
- nonconjugated polymer acceptor
- power conversion efficiency
- terpolymer
- Physics
- Fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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Su, Wenyan
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Fan, Qunping, 19 ...
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Jalan, Ishita, 1 ...
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Wang, Yufei
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Peng, Wenhong
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Guo, Tao
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Zhu, Weiguo
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Yu, Donghong
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Hou, Lintao
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Moons, Ellen, pr ...
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Wang, Ergang, 19 ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Polymer Chemistr ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Other Chemistry ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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ACS Applied Mate ...
- By the university
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Karlstad University
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Chalmers University of Technology