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9.0% power conversion efficiency from ternary all-polymer solar cells

Li, Zhaojun ; Xu, Xiaofeng ; Zhang, Wei LU ; Meng, Xiangyi ; Genene, Zewdneh ; Ma, Wei ; Mammo, Wendimagegn ; Yartsev, Arkady LU orcid ; Andersson, Mats R. and Janssen, René A J , et al. (2017) In Energy and Environmental Science 10(10). p.2212-2221
Abstract

Integration of a third component into a single-junction polymer solar cell (PSC) is regarded as an attractive strategy to enhance the performance of PSCs. Although binary all-polymer solar cells (all-PSCs) have recently emerged with compelling power conversion efficiencies (PCEs), the PCEs of ternary all-PSCs still lag behind those of the state-of-the-art binary all-PSCs, and the advantages of ternary systems are not fully exploited. In this work, we realize high-performance ternary all-PSCs with record-breaking PCEs of 9% and high fill factors (FF) of over 0.7 for both conventional and inverted devices. The improved photovoltaic performance benefits from the synergistic effects of extended absorption, more efficient charge generation,... (More)

Integration of a third component into a single-junction polymer solar cell (PSC) is regarded as an attractive strategy to enhance the performance of PSCs. Although binary all-polymer solar cells (all-PSCs) have recently emerged with compelling power conversion efficiencies (PCEs), the PCEs of ternary all-PSCs still lag behind those of the state-of-the-art binary all-PSCs, and the advantages of ternary systems are not fully exploited. In this work, we realize high-performance ternary all-PSCs with record-breaking PCEs of 9% and high fill factors (FF) of over 0.7 for both conventional and inverted devices. The improved photovoltaic performance benefits from the synergistic effects of extended absorption, more efficient charge generation, optimal polymer orientations and suppressed recombination losses compared to the binary all-PSCs, as evidenced by a set of experimental techniques. The results provide new insights for developing high-performance ternary all-PSCs by choosing appropriate donor and acceptor polymers to overcome limitations in absorption, by affording good miscibility, and by benefiting from charge and energy transfer mechanisms for efficient charge generation.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Energy and Environmental Science
volume
10
issue
10
pages
10 pages
publisher
Royal Society of Chemistry
external identifiers
  • wos:000412765600015
  • scopus:85031507320
ISSN
1754-5692
DOI
10.1039/c7ee01858d
language
English
LU publication?
yes
id
7fbc34b8-52f5-4fa3-93da-d31add3fad90
date added to LUP
2017-10-26 15:40:48
date last changed
2025-01-07 23:30:29
@article{7fbc34b8-52f5-4fa3-93da-d31add3fad90,
  abstract     = {{<p>Integration of a third component into a single-junction polymer solar cell (PSC) is regarded as an attractive strategy to enhance the performance of PSCs. Although binary all-polymer solar cells (all-PSCs) have recently emerged with compelling power conversion efficiencies (PCEs), the PCEs of ternary all-PSCs still lag behind those of the state-of-the-art binary all-PSCs, and the advantages of ternary systems are not fully exploited. In this work, we realize high-performance ternary all-PSCs with record-breaking PCEs of 9% and high fill factors (FF) of over 0.7 for both conventional and inverted devices. The improved photovoltaic performance benefits from the synergistic effects of extended absorption, more efficient charge generation, optimal polymer orientations and suppressed recombination losses compared to the binary all-PSCs, as evidenced by a set of experimental techniques. The results provide new insights for developing high-performance ternary all-PSCs by choosing appropriate donor and acceptor polymers to overcome limitations in absorption, by affording good miscibility, and by benefiting from charge and energy transfer mechanisms for efficient charge generation.</p>}},
  author       = {{Li, Zhaojun and Xu, Xiaofeng and Zhang, Wei and Meng, Xiangyi and Genene, Zewdneh and Ma, Wei and Mammo, Wendimagegn and Yartsev, Arkady and Andersson, Mats R. and Janssen, René A J and Wang, Ergang}},
  issn         = {{1754-5692}},
  language     = {{eng}},
  month        = {{10}},
  number       = {{10}},
  pages        = {{2212--2221}},
  publisher    = {{Royal Society of Chemistry}},
  series       = {{Energy and Environmental Science}},
  title        = {{9.0% power conversion efficiency from ternary all-polymer solar cells}},
  url          = {{http://dx.doi.org/10.1039/c7ee01858d}},
  doi          = {{10.1039/c7ee01858d}},
  volume       = {{10}},
  year         = {{2017}},
}