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Over 14% efficiency all-polymer solar cells enabled by a low bandgap polymer acceptor with low energy loss and efficient charge separation

Fan, Qunping, 1989 (author)
Chalmers University,Chalmers Univ Technol, Sweden,Chalmers tekniska högskola,Chalmers University of Technology
An, Qiaoshi (author)
Beijing Institute of Technology, CHN,Beijing Inst Technol, Peoples R China
Lin, Yuanbao (author)
King Abdullah University of Science and Technology (KAUST), SAU,King Abdullah Univ Sci & Technol KAUST, Saudi Arabia
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Xia, Yuxin (author)
Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten,Linköping University
Li, Qian (author)
Nanjing University, CHN,Nanjing Univ, Peoples R China
Zhang, Ming (author)
Shanghai Jiao Tong University, CHN,Shanghai Jiao Tong Univ, Peoples R China
Su, Wenyan (author)
Karlstads universitet,Institutionen för ingenjörsvetenskap och fysik (from 2013),Chalmers University;Jinan University,CHN,Chalmers Univ Technol, Sweden; Jinan Univ, Peoples R China; Karlstad Univ, Sweden,Karlstad University,Jinan University
Peng, Wenhong (author)
Chalmers University.;Changzhou University, CHN,Chalmers Univ Technol, Sweden; Changzhou Univ, Peoples R China,Changzhou University
Zhang, Chunfeng (author)
Nanjing University, CHN,Nanjing Univ, Peoples R China
Liu, Feng (author)
Shanghai Jiao Tong University, CHN,Shanghai Jiao Tong Univ, Peoples R China
Hou, Lintao (author)
Jinan University, CHN,Jinan Univ, Peoples R China
Zhu, Weiguo (author)
Changzhou University, CHN,Changzhou Univ, Peoples R China
Yu, Donghong (author)
Aalborg University, DNK ;The Sino-Danish Center for Education and Research (SDC), DNK,Aalborg Univ, Denmark; Sino Danish Ctr Educ & Res, Denmark,Aalborg Universitet
Xiao, Min (author)
Nanjing University, CHN,Nanjing Univ, Peoples R China
Moons, Ellen, professor, 1966- (author)
Karlstads universitet,Institutionen för ingenjörsvetenskap och fysik (from 2013),Karlstad Univ, Sweden,Karlstad University
Zhang, Fujun (author)
Beijing Jiaotong University, CHN,Beijing Jiaotong Univ, Peoples R China
Anthopoulos, Thomas D. (author)
King Abdullah University of Science and Technology (KAUST), SAU,King Abdullah Univ Sci & Technol KAUST, Saudi Arabia
Inganäs, Olle (author)
Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten,Linköping University
Wang, Ergang, 1981 (author)
Chalmers University;Zhengzhou University, CHN,Chalmers Univ Technol, Sweden; Zhengzhou Univ, Peoples R China,Zhengzhou University,Chalmers tekniska högskola,Chalmers University of Technology
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 (creator_code:org_t)
2020
2020
English.
In: Energy & Environmental Science. - : Royal Society of Chemistry. - 1754-5692 .- 1754-5706. ; 13:12, s. 5017-5027
Related links:
https://doi.org/10.1...
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https://kau.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Obtaining both high open-circuit voltage (V-oc) and short-circuit current density (J(sc)) has been a major challenge for efficient all-polymer solar cells (all-PSCs). Herein, we developed a polymer acceptor PF5-Y5 with excellent optical absorption capability (onset extending to similar to 880 nm and maximum absorption coefficient exceeding 105 cm(-1) in a film), high electron mobility (3.18 x 10(3) cm(2) V-1 s(-1)) and high LUMO level (-3.84 eV) to address such a challenge. As a result, the PBDB-T:PF5-Y5-based all-PSCs achieved a high power conversion efficiency of up to 14.45% with both a high Voc (0.946 V) and a high Jsc (20.65 mA cm(-2)), due to the high and broad absorption coverage, small energy loss (0.57 eV) and efficient charge separation and transport in the device, which are among the best values in the all-PSC field. In addition, the all-PSC shows a similar to 15% improvement in PCE compared to its counterpart small molecule acceptor (Y5)-based device. Our results suggest that PF5-Y5 is a very promising polymer acceptor candidate for applications in efficient all-PSCs.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)
NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
NATURVETENSKAP  -- Fysik -- Annan fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Other Physics Topics (hsv//eng)
NATURVETENSKAP  -- Kemi -- Annan kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)

Keyword

Physics
Fysik

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