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Exciton Dynamics in...
Exciton Dynamics in Alternating Polyfluorene/Fullerene Blends
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- De, Swati (author)
- Lund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,Kemisk Fysik, Kemicentrum, Lunds Universitet, Lund, Sweden
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- Kesti, Tero (author)
- Lund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,Kemisk Fysik, Kemicentrum, Lunds Universitet, Lund, Sweden
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- Maiti, Manisankar (author)
- Lund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,Kemisk Fysik, Kemicentrum, Lunds Universitet, Lund, Sweden
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- Zhang, Fengling, 1960- (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan
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- Inganäs, Olle, 1951- (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan
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- Yartsev, Arkady (author)
- Lund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,Kemisk Fysik, Kemicentrum, Lunds Universitet, Lund, Sweden
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- Pascher, Torbjörn (author)
- Lund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,Kemisk Fysik, Kemicentrum, Lunds Universitet, Lund, Sweden
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- Sundström, Villy (author)
- Lund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,Kemisk Fysik, Kemicentrum, Lunds Universitet, Lund, Sweden
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(creator_code:org_t)
- College Park, MD, United States : American Institute of Physics (AIP), 2008
- 2008
- English.
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In: Journal of Chemical Physics. - College Park, MD, United States : American Institute of Physics (AIP). - 0021-9606 .- 1089-7690. ; 350:1-3, s. 14-22
- Related links:
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- Exciton dynamics in alternating copolymer/fullerene solar cell blends have been investigated using femtosecond transient absorption spectroscopy. The acceptor concentrations have been varied over a wide range. Experimental data, kinetic modeling and simulations, all indicate that the efficiency of exciton conversion to charges is 100% even at acceptor concentrations as low as 20 wt%. The reported dependence of solar cell efficiency on fullerene concentration may thus arise from other factors. However, there exists an acceptor concentration threshold (5 wt%) below which a substantial fraction of the excitations remain unquenched. The results, we believe are very relevant to optimization of performance efficiency by clever manipulation of morphology. We have also observed exciton–exciton energy transfer in these blends at low acceptor concentrations.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Keyword
- Exciton dynamics; Polyfluorene/fullerene blends
- NATURAL SCIENCES
- NATURVETENSKAP
- exciton dynamics
- polyfluorene/fullerene blends
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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De, Swati
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Kesti, Tero
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Maiti, Manisanka ...
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Zhang, Fengling, ...
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Inganäs, Olle, 1 ...
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Yartsev, Arkady
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Pascher, Torbjör ...
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Sundström, Villy
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- About the subject
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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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Journal of Chemi ...
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Chemical Physics
- By the university
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Linköping University
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Lund University