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Approaching 19% eff...
Approaching 19% efficiency and stable binary polymer solar cells enabled by a solidification strategy of solvent additive
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- Xiao, Manjun (författare)
- Xiangtan Univ, Peoples R China; South China Univ Technol, Peoples R China; Changzhou Univ, Peoples R China
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- Liu, Longfei (författare)
- Xiangtan Univ, Peoples R China
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- Meng, Yongdie (författare)
- Xiangtan Univ, Peoples R China
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- Fan, Baobing (författare)
- City Univ Hong Kong, Peoples R China
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- Su, Wenyan (författare)
- Xian Univ Sci & Technol, Peoples R China
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- Jin, Conggui (författare)
- Xiangtan Univ, Peoples R China
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- Liao, Luocheng (författare)
- Xiangtan Univ, Peoples R China
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- Yi, Fan (författare)
- Xiangtan Univ, Peoples R China; Xi An Jiao Tong Univ, Peoples R China
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- Xu, Chao (författare)
- Xiangtan Univ, Peoples R China; Changzhou Univ, Peoples R China
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- Zhang, Rui (författare)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
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- Jen, Alex K. -Y. (författare)
- City Univ Hong Kong, Peoples R China
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- Ma, Wei (författare)
- Xi An Jiao Tong Univ, Peoples R China
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- Fan, Qunping (författare)
- Xi An Jiao Tong Univ, Peoples R China; Changzhou Univ, Peoples R China
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(creator_code:org_t)
- SCIENCE PRESS, 2023
- 2023
- Engelska.
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Ingår i: Science in China Series B. - : SCIENCE PRESS. - 1674-7291 .- 1869-1870. ; 66, s. 1500-1510
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Additives play a crucial role in enhancing the photovoltaic performance of polymer solar cells (PSCs). However, the typical additives used to optimize blend morphology of PSCs are still high boiling-point solvents, while their trace residues may reduce device stability. Herein, an effective strategy of "solidification of solvent additive (SSA)" has been developed to convert additive from liquid to solid, by introducing a covalent bond into low-cost solvent diphenyl sulfide (DPS) to synthesize solid dibenzothiophene (DBT) in one-step, which achieves optimized morphology thus promoting efficiency and device stability. Owing to the fine planarity and volatilization of DBT, the DBT-processed films achieve ordered molecular crystallinity and suitable phase separation compared to the additive-free or DPS-treated ones. Importantly, the DBT-processed device also possesses improved light absorption, enhanced charge transport, and thus a champion efficiency of 11.9% is achieved in the PM6:Y6-based PSCs with an excellent additive component tolerance, reproducibility, and stability. Additionally, the DBT-processed PM6:L8-BO-based PSCs are further fabricated to study the universality of SSA strategy, offering an impressive efficiency approaching 19% as one of the highest values in binary PSCs. In conclusion, this article developed a promising strategy named SSA to boost efficiency and improve stability of PSCs.
Ämnesord
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
Nyckelord
- polymer solar cells; solidification of solvent additives; power conversion efficiency; device stability
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- ref (ämneskategori)
- art (ämneskategori)
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Xiao, Manjun
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Liu, Longfei
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Meng, Yongdie
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Fan, Baobing
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Su, Wenyan
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Jin, Conggui
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visa fler...
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Liao, Luocheng
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Yi, Fan
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Xu, Chao
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Zhang, Rui
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Jen, Alex K. -Y.
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Ma, Wei
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Fan, Qunping
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visa färre...
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Annan kemi
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Science in China ...
- Av lärosätet
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Linköpings universitet