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Structural engineer...
Structural engineering of pyrrolo[3,4-: F] benzotriazole-5,7(2 H,6 H)-dione-based polymers for non-fullerene organic solar cells with an efficiency over 12%
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- Alkadir Abdulahi, Birhan, 1985 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Addis Ababa University
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- Li, Xiaoming (author)
- Hebei University of Science and Technology
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- Mone, Mariza, 1992 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kiros, Bisrat (author)
- Addis Ababa University
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- Genene, Zewdneh, 1983 (author)
- Ambo University
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- Qiao, Shanlin (author)
- Hebei University of Science and Technology
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- Yang, R. (author)
- Chinese Academy of Sciences
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- Wang, Ergang, 1981 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Mammo, W. (author)
- Addis Ababa University
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(creator_code:org_t)
- 2019
- 2019
- English.
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In: Journal of Materials Chemistry A. - : Royal Society of Chemistry (RSC). - 2050-7488 .- 2050-7496. ; 7:33, s. 19522-19530
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Abstract
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- In this work, we have synthesized two wide band gap donor polymers based on benzo[1,2-b:4,5-b′]dithiophene (BDT) and pyrrolo[3,4-f]benzotriazole-5,7(2H,6H)-dione (TzBI), namely, PBDT-TzBI and PBDT-F-TzBI and studied their photovoltaic properties by blending them with ITIC as an acceptor. Polymer solar cell devices made from PBDT-TzBI:ITIC and PBDT-F-TzBI:ITIC exhibited power conversion efficiencies (PCEs) of 9.22% and 11.02% and while annealing at 160 °C, improved the device performances to 10.24% and 11.98%, respectively. Upon solvent annealing with diphenyl ether (DPE) (0.5%) and chlorobenzene (CB), the PCE of the PBDT-F-TzBI-based device increased to 12.12%. The introduction of the fluorinated benzodithiophene (BDT-F) moiety on the backbone of PBDT-F-TzBI improved the open circuit voltage, short circuit current and fill factor simultaneously. The high PCEs of the PBDT-F-TzBI:ITIC-based devices were supported by comparison and analysis of the optical and electronic properties, the charge carrier mobilities, exciton dissociation probabilities, and charge recombination behaviors of the devices.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Polymerteknologi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Polymer Technologies (hsv//eng)
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- art (subject category)
- ref (subject category)
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- By the author/editor
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Alkadir Abdulahi ...
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Li, Xiaoming
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Mone, Mariza, 19 ...
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Kiros, Bisrat
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Genene, Zewdneh, ...
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Qiao, Shanlin
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show more...
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Yang, R.
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Wang, Ergang, 19 ...
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Mammo, W.
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show less...
- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Chemical Enginee ...
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and Polymer Technolo ...
- Articles in the publication
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Journal of Mater ...
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Chalmers University of Technology