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Realizing Efficient...
Realizing Efficient Charge/Energy Transfer and Charge Extraction in Fullerene-Free Organic Photovoltaics via a Versatile Third Component
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- Cheng, Hao-Wen (författare)
- Univ Calif Los Angeles, CA 90095 USA; Natl Chiao Tung Univ, Taiwan
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- Zhang, Huotian (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Lin, Yu-Che (författare)
- Univ Calif Los Angeles, CA 90095 USA; Natl Chiao Tung Univ, Taiwan
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- She, Nian-Zu (författare)
- Natl Chiao Tung Univ, Taiwan
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- Wang, Rui (författare)
- Univ Calif Los Angeles, CA 90095 USA
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- Chen, Chung-Hao (författare)
- Natl Chiao Tung Univ, Taiwan
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- Yuan, Jun (författare)
- Univ Calif Los Angeles, CA 90095 USA; Cent S Univ, Peoples R China
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- Tsao, Cheng-Si (författare)
- Natl Taiwan Univ, Taiwan; Inst Nucl Energy Res, Taiwan
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- Yabushita, Atsushi (författare)
- Natl Chiao Tung Univ, Taiwan
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- Zou, Yingping (författare)
- Cent S Univ, Peoples R China
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- Gao, Feng (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Cheng, Pei (författare)
- Univ Calif Los Angeles, CA 90095 USA
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- Wei, Kung-Hwa (författare)
- Natl Chiao Tung Univ, Taiwan
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- Yang, Yang (författare)
- Univ Calif Los Angeles, CA 90095 USA
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(creator_code:org_t)
- 2019-07-12
- 2019
- Engelska.
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Ingår i: Nano letters (Print). - : AMER CHEMICAL SOC. - 1530-6984 .- 1530-6992. ; 19:8, s. 5053-5061
- 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
- Solution-processed organic photovoltaics (OPVs) based on bulk-heterojunctions have gained significant attention to alleviate the increasing demend of fossil fuel in the past two decades. OPVs combined of a wide bandgap polymer donor and a narrow bandgap nonfullerene acceptor show potential to achieve high performance. However, there are still two reasons to limit the OPVs performance. One, although this combination can expand from the ultraviolet to the near-infrared region, the overall external quantum efficiency of the device suffers low values. The other one is the low open-circuit voltage (V-OC) of devices resulting from the relatively downshifted lowest unoccupied molecular orbital (LUMO) of the narrow bandgap. Herein, the approach to select and incorporate a versatile third component into the active layer is reported. A third component with a bandgap larger than that of the acceptor, and absorption spectra and LUMO levels lying within that of the donor and acceptor, is demonstrated to be effective to conquer these issues. As a result, the power conversion efficiencies (PCEs) are enhanced by the elevated short-circuit current and V-OC; the champion PCEs are 11.1% and 13.1% for PTB7-Th:IEICO-4F based and PBDB-T:Y1 based solar cells, respectively.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- Organic photovoltaics; nonfullerene; ternary blend; charge transfer; energy transfer; charge extraction
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Cheng, Hao-Wen
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Zhang, Huotian
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Lin, Yu-Che
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She, Nian-Zu
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Wang, Rui
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Chen, Chung-Hao
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visa fler...
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Yuan, Jun
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Tsao, Cheng-Si
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Yabushita, Atsus ...
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Zou, Yingping
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Gao, Feng
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Cheng, Pei
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Wei, Kung-Hwa
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Yang, Yang
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