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Morphological and Device Evaluation of an Amphiphilic Block Copolymer for Organic Photovoltaic Applications

Title data

Mitchell, Valerie D. ; Gann, Eliot ; Hüttner, Sven ; Singh, Chetan R. ; Subbiah, Jegadesan ; Thomsen, Lars ; McNeill, Christopher R. ; Thelakkat, Mukundan ; Jones, David J.:
Morphological and Device Evaluation of an Amphiphilic Block Copolymer for Organic Photovoltaic Applications.
In: Macromolecules. Vol. 50 (2017) Issue 13 . - pp. 4942-4951.
ISSN 0024-9297
DOI: https://doi.org/10.1021/acs.macromol.7b00377

Abstract in another language

We report the morphological and photovoltaic evaluation of a novel fully conjugated donor/acceptor block copolymer system based on the P3HT-b-PFTBT scaffold. The incorporation of hydrophilic tetraethylene glycol side-chains into the PFTBT acceptor block generates an amphiphilic species whose properties provide demonstrable benefits over traditional systems. This design strategy facilitates isolation of the block copolymer from homopolymer impurities present in the reaction mixture, and we show that this purification leads to better-defined morphologies. The chemical disparity introduced between donor and acceptor blocks causes spontaneous microphase separation into well-defined domains, which we demonstrate with a combination of spectroscopy, microscopy, and X-ray scattering. The morphological advantages of this system are significant; however, preliminary device characterization indicates a loss of electron mobility in the hydrophilic acceptor block.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: 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 > Advanced Fields > Polymer and Colloid Science
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 > Junior Professorship Solar Energy
Profile Fields
Profile Fields > Advanced Fields
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
500 Science > 540 Chemistry
Date Deposited: 04 Sep 2017 13:46
Last Modified: 04 Sep 2017 13:46
URI: https://eref.uni-bayreuth.de/id/eprint/39261