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Conjugated polymers...
Conjugated polymers with polar side chains in bulk heterojunction solar cell devices
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- Gedefaw, Desta Antenehe, 1971 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers, Sweden
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- Zhou, Yi (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Ma, Zaifei (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan
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- Genene, Z. (author)
- Addis Ababa University,University of Addis Ababa, Ethiopia
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- Hellström, Stefan, 1978 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers, Sweden
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- Zhang, Fengling (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan
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- Mammo, Wendimagegn, 1954 (author)
- Addis Ababa University,University of Addis Ababa, Ethiopia
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- Inganäs, Olle (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan
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- Andersson, Mats, 1966 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers, Sweden
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(creator_code:org_t)
- 2013-09-13
- 2014
- English.
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In: Polymer International. - : Wiley. - 1097-0126 .- 0959-8103. ; 63:1, s. 22-30
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http://dx.doi.org/10...
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Abstract
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- Two polymers with polar side chains, namely poly[2,7-(9,9-dioctylfluorene)-alt-5,5-(5',8'-di-2-thienyl-(2',3'-bis(3''-(2-(2-methoxyethoxy)ethoxy)phenyl)quinoxaline))] (P1) and poly[2,7-(9,9-bis(2-(2-methoxyethoxy)ethyl)fluorene)-alt-5,5-(5',8'-di-2-thienyl-(2',3'-bis(3''-(2-(2-methoxyethoxy)-ethoxy)phenyl)quinoxaline))] (P2), were synthesized for solar cell application. A series of bulk heterojunction solar cells were systematically fabricated and characterized by varying the electron-acceptor materials, processing solvents and thickness of the active layer. The results show that P1, with a higher molecular weight and good film-forming properties, performed better. The best device showed an open circuit voltage of 0.87 V, a short circuit current of 6.81 mA cm(-2) and a power conversion efficiency of 2.74% with 1:4 polymer:[6,6]-phenyl-C71-butyric acid methyl ester (PCBM[70]) mixture using o-dichlorobenzene (o-DCB) as processing solvent. P2 on the other hand showed a poorer performance with chlorobenzene as processing solvent, but a much improved performance was obtained using o-DCB instead. Thus, an open circuit voltage of 0.80 V, short circuit current of 6.21 mA cm(-2) and an overall power conversion efficiency of 2.22% were recorded for a polymer:PCBM[70] mixing ratio of 1:4. This is presumably due to the improvement of the morphology of the active layer using o-DCB as processing solvent. (c) 2013 Society of Chemical Industry
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Textil-, gummi- och polymermaterial (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Textile, Rubber and Polymeric Materials (hsv//eng)
Keyword
- TANDEM
- POLYFLUORENE COPOLYMER
- polar polymer
- power conversion efficiency
- ENHANCEMENT
- ELECTRON
- BLENDS
- MORPHOLOGY
- LOW-BANDGAP POLYMER
- ORGANIZATION
- conjugated polymer
- PERFORMANCE
- donor-acceptor-donor
- TECHNOLOGY
Publication and Content Type
- art (subject category)
- ref (subject category)
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Gedefaw, Desta A ...
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Zhou, Yi
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Ma, Zaifei
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Genene, Z.
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Hellström, Stefa ...
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Zhang, Fengling
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Mammo, Wendimage ...
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Inganäs, Olle
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Andersson, Mats, ...
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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and Textile Rubber a ...
- Articles in the publication
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Polymer Internat ...
- By the university
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Chalmers University of Technology
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Linköping University