id:"swepub:oai:research.chalmers.se:1863659e-4c69-4817-b75a-68dbe3ba6bed"
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- Kroon, Renee,1982Chalmers tekniska högskola,Chalmers University of Technology (author)
Effect of electron-withdrawing side chain modifications on the optical properties of thiophene-quinoxaline acceptor based polymers
- Article/chapterEnglish2013
Publisher, publication year, extent ...
- Elsevier BV,2013
Numbers
- LIBRIS-ID:oai:research.chalmers.se:1863659e-4c69-4817-b75a-68dbe3ba6bed
- https://research.chalmers.se/publication/174817URI
- https://doi.org/10.1016/j.polymer.2013.01.003DOI
Supplementary language notes
- Language:English
- Summary in:English
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Notes
- Four new thiophene-quinoxaline acceptor based polymers have been synthesized. The parent thiophene-quinoxaline acceptor based copolymer was modified by introducing different electron-withdrawing groups adjacent to the thiophene side group. The effect on the physical, electrochemical and optical properties of the polymer series is discussed with respect to the parent thiophene-quinoxaline acceptor based polymer. The side chain carbonyl from one modified monomer could conveniently be transformed to either a difluoromethylene or an -ylidene malononitrile group via carbonyl transformations. For all polymers incorporating an electron-withdrawing side group both the HOMO and especially the LUMO were significantly shifted away from vacuum while all exhibit enhanced light harvesting ability. Especially the incorporation of an -ylidine malononitrile side group increases both the spectral coverage and absorption coefficient. Incorporation of a difluoromethylene side group resulted in a twofold increase of the molecular weight compared to the parent polymer structure.
Subject headings and genre
- NATURVETENSKAP Kemi hsv//swe
- NATURAL SCIENCES Chemical Sciences hsv//eng
- performance
- Energy level engineering
- Conjugated polymers
- pi-conjugated polymers
- solar-cells
- Side chain modification
Added entries (persons, corporate bodies, meetings, titles ...)
- Lundin, Angelica,1971Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)angelica (author)
- Lindqvist, Camilla,1985Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)camillal (author)
- Henriksson, Patrik,1983Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)k02hepa (author)
- Steckler, Timothy,1979Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)steckler (author)
- Andersson, Mats,1966Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)matsand (author)
- Chalmers tekniska högskola (creator_code:org_t)
Related titles
- In:Polymer: Elsevier BV54:4, s. 1285-12880032-3861
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