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Sulfur vs. telluriu...
Sulfur vs. tellurium: the heteroatom effects on the nonfullerene acceptors
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- Yang, Lei (författare)
- Univ Chinese Acad Sci, Peoples R China; Imperial Coll London, England
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- Qin, Linqing (författare)
- Univ Chinese Acad Sci, Peoples R China
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- Xu, Yunxiao (författare)
- Univ Chinese Acad Sci, Peoples R China
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- Zhang, Huotian (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Lv, Lei (författare)
- Univ Chinese Acad Sci, Peoples R China
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- Chen, Kepeng (författare)
- Dalian Univ Technol, Peoples R China
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- Sui, Xinyu (författare)
- Natl Ctr Nanosci and Technol, Peoples R China
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- Zhong, Yangguang (författare)
- Natl Ctr Nanosci and Technol, Peoples R China
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- Guo, Yuan (författare)
- Chinese Acad Sci, Peoples R China
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- Gao, Feng (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Zhao, Jianzhang (författare)
- Dalian Univ Technol, Peoples R China
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- Li, Yuhao (författare)
- Chinese Univ Hong Kong, Peoples R China
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- Liu, Xinfeng (författare)
- Natl Ctr Nanosci and Technol, Peoples R China; Univ Chinese Acad Sci, Peoples R China
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- Yi, Yuanping (författare)
- Chinese Acad Sci, Peoples R China
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- Lu, Xinhui (författare)
- Chinese Univ Hong Kong, Peoples R China
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- Peng, Aidong (författare)
- Univ Chinese Acad Sci, Peoples R China
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- Huang, Hui (författare)
- Univ Chinese Acad Sci, Peoples R China
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(creator_code:org_t)
- 2019-03-29
- 2019
- Engelska.
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Ingår i: Science in China Series B. - : SCIENCE PRESS. - 1674-7291 .- 1869-1870. ; 62:7, s. 897-903
- 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
- The effect of chalcogen heteroatom variation on donor materials has been systematically investigated. However, this effect on acceptors has rarely been explored. Herein, nonfullerene acceptors BFPSP and BFPTP were reported by simply changing the chalcogen atoms from S to Te. The differences between BFPSP and BFPTP in light absorption, energy levels, excited-state lifetimes, energy loss, charge mobilities, morphology, and photovoltaic properties were systematically investigated to understand the heteroatom effects. More importantly, the electroluminescence spectra, external quantum efficiency of photovoltaics and TD-DFT calculations revealed that the triplet excited state (T-1) in energy of BFPTP equals to the charge transfer (CT) state in PBDB-T:BFPTP, which allows T-1 excitons, generated by intersystem crossing, to split into free charges to contribute to the efficiency. This contribution provides a strategy for tuning the photophysical properties of nonfullerene acceptors and designing high performance triplet materials for OSCs.
Ämnesord
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
Nyckelord
- heteroatom effects; triplet state; tellurophene; nonfullerene acceptor; organic solar cells
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Yang, Lei
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Qin, Linqing
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Xu, Yunxiao
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Zhang, Huotian
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Lv, Lei
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Chen, Kepeng
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visa fler...
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Sui, Xinyu
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Zhong, Yangguang
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Guo, Yuan
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Gao, Feng
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Zhao, Jianzhang
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Li, Yuhao
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Liu, Xinfeng
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Yi, Yuanping
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Lu, Xinhui
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Peng, Aidong
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Huang, Hui
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NATURVETENSKAP
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