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Nonfullerene accept...
Nonfullerene acceptors from thieno[3,2-b]thiophene-fused naphthalene donor core with six-member-ring connection for efficient organic solar cells
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- Du, Siying (author)
- Hunan University of Science and Technology,Hunan Univ Sci & Technol, Peoples R China
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- Yao, Nannan (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
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- Liu, Shungang (author)
- Hunan University of Science and Technology,Hunan Univ Sci & Technol, Peoples R China
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- Xu, Yongzhuo (author)
- Hunan University of Science and Technology,Hunan Univ Sci & Technol, Peoples R China
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- Cao, Jiamin, 1986 (author)
- Hunan University of Science and Technology,Chalmers tekniska högskola,Chalmers University of Technology,Hunan Univ Sci & Technol, Peoples R China; Chalmers Univ Technol, Sweden
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- Zhuang, Wenliu, 1979 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Sweden; Guangdong Ind Polytech, Peoples R China
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- Yu, Junting (author)
- Hunan University of Science and Technology,Hunan Univ Sci & Technol, Peoples R China
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- Wang, Nong, 1968 (author)
- Lanzhou Jiaotong University,Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Sweden; Lanzhou Jiaotong Univ, Peoples R China
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- Yu, Donghong (author)
- Changsha University of Science and Technology,Aalborg Universitet,Aalborg University,Changsha Univ Sci & Technol, Peoples R China; Changsha Univ Sci & Technol, Peoples R China; Aalborg Univ, Denmark
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- Zhang, Fengling (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
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- Wang, Ergang, 1981 (author)
- Zhengzhou University,Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Sweden; Zhengzhou Univ, Peoples R China
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(creator_code:org_t)
- Elsevier BV, 2021
- 2021
- English.
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In: Dyes and Pigments. - : Elsevier BV. - 0143-7208 .- 1873-3743. ; 185
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Abstract
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- Comprehensive design ideas on the fused-ring donor-core in state-of-the-art acceptor-donor-acceptor (A-D-A) nonfullerene acceptors (NFAs) are still of great importance for regulating the electron push-pull effect for the sake of optimal light-harvesting, frontier molecular orbital levels, and finally their photovoltaic properties. Herein, thieno[3,2-b]thiophenes were fused in bay-area of naphthalene via six-member-ring connection, resulting in the formation of dihydropyrenobisthieno[3,2-b]thiophene based octacyclic ladder-type donor core, which was flanked by two 1,1-dicyanomethylene-3-indanone (IC) acceptor motifs with and without 5,6-diflourination, namely PTT-IC and PTT-2FIC, respectively, as novel efficient A-D-A fused-ring electron acceptors (FREAs). Compared with PTT-IC, fluorinated PTT-2FIC possesses narrower optical bandgap of 1.48 eV, better π-π stacking, and its PBDB-T:PTT-2FIC blend film exhibited better morphology, and better hole and electron mobility. As a result, nonfullerene solar cells using PBDB-T:PTT-2FIC as the active layer achieved a decent PCE of 10.40%, with an open-circuit voltage (VOC) of 0.87 V, a fill factor (FF) of 0.65, and a much higher short-circuit current (JSC) of 18.26 mA/cm2. Meanwhile, the PBDB-T:PTT-IC cells delivered a lower JSC of 12.58 mA/cm2 but a higher VOC of 0.99 V, thus resulting in a PCE of 7.39% due to its wider optical bandgap of 1.58 eV and higher LUMO energy level. These results demonstrated that NFAs based on fused-ring donor core from fusing thieno[3,2-b]thiophenes with naphthalene via six-member-ring connection are promising for organic photovoltaic applications.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Keyword
- Power conversion efficiency
- Organic solar cells
- Six-member-ring
- Naphthalene
- Nonfullerene acceptors
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Du, Siying
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Yao, Nannan
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Liu, Shungang
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Xu, Yongzhuo
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Cao, Jiamin, 198 ...
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Zhuang, Wenliu, ...
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show more...
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Yu, Junting
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Wang, Nong, 1968
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Yu, Donghong
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Zhang, Fengling
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Wang, Ergang, 19 ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
- Articles in the publication
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Dyes and Pigment ...
- By the university
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Chalmers University of Technology
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Linköping University