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Influence of molecular weight on the solar cell performance of double-crystalline donor-acceptor block copolymers

Title data

Sommer, Michael ; Hüttner, Sven ; Steiner, Ullrich ; Thelakkat, Mukundan:
Influence of molecular weight on the solar cell performance of double-crystalline donor-acceptor block copolymers.
In: Applied Physics Letters. Vol. 95 (2009) Issue 18 . - p. 183308.
ISSN 1077-3118
DOI: https://doi.org/10.1063/1.3257367

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

We investigate the influence of the molecular weight of double-crystalline donor-acceptor block copolymers comprised of poly(3-hexylthiophene) as donor and poly(perylene bisimide acrylate) as acceptor segments on the device performance of polymer solar cells. Two block copolymers 1 and 2 exhibiting different molecular weights but the same composition are compared. Block copolymer 2 with the higher molecular weight shows an improvement in the hole carrier mobility mu(OFET) of more than two orders of magnitude, and an improvement in the external quantum efficiency of one order of magnitude reaching 31%, which is the highest reported value for a block copolymer system.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry I
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Junior Professorship Solar Energy > Junior Professorship Solar Energy - Juniorprof. Dr. Sven Hüttner
Profile Fields
Profile Fields > Emerging Fields
Profile Fields > Emerging Fields > Energy Research and Energy Technology
Research Institutions
Research Institutions > Collaborative Research Centers, Research Unit
Research Institutions > Collaborative Research Centers, Research Unit > SFB 481 Komplexe Makromolekül- und Hybridsysteme in inneren und äußeren Feldern
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Junior Professorship Solar Energy
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professorship Applied Functional Polymers > Professorship Applied Functional Polymers - Univ.-Prof. Dr. Mukundan Thelakkat
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professorship Applied Functional Polymers
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 14 Apr 2016 08:13
Last Modified: 21 Jul 2016 08:32
URI: https://eref.uni-bayreuth.de/id/eprint/1290