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Axisymmetric and As...
Axisymmetric and Asymmetric Naphthalene-Bisthienothiophene Based Nonfullerene Acceptors: On Constitutional Isomerization and Photovoltaic Performance
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- Hu, Wei (författare)
- Hunan University of Science and Technology
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- Du, Xiaoyan (författare)
- Hunan University of Science and Technology
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- Zhuang, Wenliu, 1979 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Su, Wenyan (författare)
- Soochow University
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- Cao, Jiamin, 1986 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Pourrahimi, Amir Masoud, 1985 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Li, Ning (författare)
- Helmholtz Zentrum,Helmholtz Center
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- Shen, Xingxing (författare)
- Hebei University of Technology
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- Zhang, Maojie (författare)
- Soochow University
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- Yu, Donghong (författare)
- Aalborg Universitet,Aalborg University
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- Gruber, Wolfgang (författare)
- Friedrich-Alexander-Universität Erlangen Nurnberg (FAU)
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- Unruh, Tobias (författare)
- Friedrich-Alexander-Universität Erlangen Nurnberg (FAU)
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- Wang, Ergang, 1981 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Brabec, Christoph J. (författare)
- Friedrich-Alexander-Universität Erlangen Nurnberg (FAU)
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(creator_code:org_t)
- 2020-05-05
- 2020
- Engelska.
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Ingår i: ACS Applied Energy Materials. - : American Chemical Society (ACS). - 2574-0962. ; 3:6, s. 5734-5744
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Two pairs of constitutional isomers of fused-octacyclic nonfullerene acceptors (NFAs) based on a naphthalene-bisthienothiophene core with or without fluorination at the ending groups have been developed. Compared with the axisymmetric NFAs N66-IC and N66-2FIC with two six-member-ring bridges, their asymmetric constitutional isomers N65-IC and N65-2FIC both with one six-member-ring bridge and one five-member-ring bridge exhibit remarkable red-shifted absorption, higher crystallinity, and slightly down-shifted LUMO energy levels. Organic solar cells based on PBDB-T-2F:N65-2FIC achieved a promising power conversion efficiency of 10.19%, which is three times higher than that of its counterpart PBDB-T-2F:N66-2FIC cell (3.46%). While being blended with PBDB-T as the donor material, the asymmetric acceptor analogue N65-IC based solar cell pronounces a PCE of 9.03%, being significantly improved from that of 5.45% for the PBDB-T:N66-IC based cell, which is in consistency with the results from those cells from their both fluorinated donor and acceptor counterparts. Design rules on either both fluorinated, both nonfluorinated, or cross-combined donor/acceptors for device fabrication has been explored. In addition, PBDB-T-2F:N65-2FIC possesses very promising device stability with 85% of its initial PCE after an exposure time of 1500 h under one sun illumination, which is meaningful for their future commercial devices.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
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Hu, Wei
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Du, Xiaoyan
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Zhuang, Wenliu, ...
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Su, Wenyan
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Cao, Jiamin, 198 ...
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Pourrahimi, Amir ...
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visa fler...
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Li, Ning
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Shen, Xingxing
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Zhang, Maojie
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Yu, Donghong
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Gruber, Wolfgang
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Unruh, Tobias
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Wang, Ergang, 19 ...
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Brabec, Christop ...
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Materialteknik
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Nanoteknik
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Chalmers tekniska högskola