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Tuning the electron...
Tuning the electron-deficient core of a non-fullerene acceptor to achieve over 17% efficiency in a single-junction organic solar cell
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- Zhu, Can (författare)
- Cent South Univ, Peoples R China
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- Yuan, Jun (författare)
- Cent South Univ, Peoples R China
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- Cai, Fangfang (författare)
- Cent South Univ, Peoples R China
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- Meng, Lei (författare)
- 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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- Chen, Honggang (författare)
- Cent South Univ, Peoples R China
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- Li, Jing (författare)
- Cent South Univ, Peoples R China
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- Qiu, Beibei (författare)
- Chinese Acad Sci, Peoples R China
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- Peng, Hongjian (författare)
- Cent South Univ, Peoples R China
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- Chen, Shanshan (författare)
- Ulsan Natl Inst Sci & Technol UNIST, South Korea; Chongqing Univ, Peoples R China
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- Hu, Yunbin (författare)
- Cent South Univ, Peoples R China
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- Yang, Changduk (författare)
- Ulsan Natl Inst Sci & Technol UNIST, South Korea
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- Gao, Feng (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Zou, Yingping (författare)
- Cent South Univ, Peoples R China
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- Li, Yongfang (författare)
- Chinese Acad Sci, Peoples R China
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(creator_code:org_t)
- 2020
- 2020
- Engelska.
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Ingår i: Energy & Environmental Science. - : ROYAL SOC CHEMISTRY. - 1754-5692 .- 1754-5706. ; 13:8, s. 2459-2466
- 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
- Finding effective molecular design strategies to enable efficient charge generation and small energy loss is among the long-standing challenges in developing high performance non-fullerene organic solar cells (OSCs). Recently, we reported Y-series non-fullerene acceptors with an electron-deficient-core-based fused structure (typically Y6), opening a new door to achieve high external quantum efficiency (∼80%) while maintaining low energy loss (∼0.57 eV). On this basis, further reducing the energy losses and ultimately improving the performance of OSCs has become a research hotspot. In this paper, we design and synthesize a new member of the Y-series acceptor family, Y18, which adopts a fused benzotriazole segment with unique luminescence properties as its electron-deficient core. Compared to Y6, the benzotriazole-based acceptor Y18 exhibits extended optical absorption and higher voltage. Consequently, the device delivers a promising power conversion efficiency of 16.52% with a very low energy loss of 0.53 eV. Further device optimization by exploiting a ternary blend strategy allowed us to achieve a high efficiency of 17.11% (certified as 16.76% by NREL). Y18 may become one of the most important candidate materials for its broader absorption spectra and higher voltage of Y18 (compared to Y6) in the OSCs field.
Ämnesord
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
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Zhu, Can
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Yuan, Jun
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Cai, Fangfang
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Meng, Lei
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Zhang, Huotian
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Chen, Honggang
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visa fler...
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Li, Jing
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Qiu, Beibei
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Peng, Hongjian
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Chen, Shanshan
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Hu, Yunbin
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Yang, Changduk
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Gao, Feng
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Zou, Yingping
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Li, Yongfang
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Energy & Environ ...
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