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16% efficiency all-polymer organic solar cells enabled by a finely tuned morphology via the design of ternary blend

Liu, Tao (author)
Shandong Normal Univ, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China
Yang, Tao (author)
Shenzhen Technol Univ, Peoples R China
Ma, Ruijie (author)
Hong Kong Univ Sci & Technol, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China
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Zhan, Lingling (author)
Zhejiang Univ, Peoples R China
Luo, Zhenghui (author)
Hong Kong Univ Sci & Technol, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China
Zhang, Guangye (author)
Shenzhen Technol Univ, Peoples R China
Li, Yuan (author)
South China Univ Technol, Peoples R China
Gao, Ke (author)
Shandong Univ, Peoples R China
Xiao, Yiqun (author)
Chinese Univ Hong Kong, Peoples R China
Yu, Jianwei (author)
Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
Zou, Xinhui (author)
Hong Kong Univ Sci & Technol, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China
Sun, Huiliang (author)
Hong Kong Univ Sci & Technol, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China; Southern Univ Sci & Technol SUSTech, Peoples R China; Southern Univ Sci & Technol SUSTech, Peoples R China
Zhang, Maojie (author)
Soochow Univ, Peoples R China
Dela Pena, Top Archie (author)
Hong Kong Univ Sci & Technol, Peoples R China
Xing, Zengshan (author)
Hong Kong Univ Sci & Technol, Peoples R China
Liu, Heng (author)
Chinese Univ Hong Kong, Peoples R China
Li, Xiaojun (author)
Hong Kong Univ Sci & Technol, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China
Li, Gang (author)
Shandong Normal Univ, Peoples R China
Huang, Jianhua (author)
Huaqiao Univ, Peoples R China
Duan, Chunhui (author)
South China Univ Technol, Peoples R China
Wong, Kam Sing (author)
Hong Kong Univ Sci & Technol, Peoples R China
Lu, Xinhui (author)
Chinese Univ Hong Kong, Peoples R China
Guo, Xugang (author)
Southern Univ Sci & Technol SUSTech, Peoples R China; Southern Univ Sci & Technol SUSTech, Peoples R China
Gao, Feng (author)
Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
Chen, Hongzheng (author)
Zhejiang Univ, Peoples R China
Huang, Fei (author)
South China Univ Technol, Peoples R China
Li, Yongfang (author)
Soochow Univ, Peoples R China
Li, Yuliang (author)
Shandong Univ, Peoples R China
Cao, Yong (author)
South China Univ Technol, Peoples R China
Tang, Bo (author)
Shandong Normal Univ, Peoples R China
Yan, He (author)
Hong Kong Univ Sci & Technol, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China; South China Univ Technol, Peoples R China; Hong Kong Univ Sci & Technol, Peoples R China
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 (creator_code:org_t)
CELL PRESS, 2021
2021
English.
In: Joule. - : CELL PRESS. - 2542-4351. ; 5:4, s. 914-930
Related links:
https://urn.kb.se/re...
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https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • A SUMMARY There is an urgent demand for all-polymer organic solar cells (AP-OSCs) to gain higher efficiency. Here, we successfully improve the performance to 16.09% by introducing a small amount of BN-T, a B <- N-type polymer acceptor, into the PM6:PY-IT blend. It has been found that BN-T makes the active layer, based on the PM6:PY-IT:BN-T ternary blend, more crystalline but meanwhile slightly reduces the phase separation, leading to enhancement of both exciton harvesting and charge transport. From a thermodynamic viewpoint, BN-T prefers to reside between PM6 and PY-IT, and the fraction of this fine-tunes the morphology. Besides, a significantly reduced nonradiative energy loss occurs in the ternary blend, along with the coexistence of energy and charge transfer between the two acceptors. The progressive performance facilitated by these improved properties demonstrates that AP-OSCs can possibly comparably efficient with those based on small molecule acceptors, further enhancing the competitiveness of this device type.

Subject headings

NATURVETENSKAP  -- Kemi -- Polymerkemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Polymer Chemistry (hsv//eng)

Publication and Content Type

ref (subject category)
art (subject category)

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