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Polymers 2016, 8(12), 440; doi:10.3390/polym8120440

Synthesis of Polythiophene–Fullerene Hybrid Additives as Potential Compatibilizers of BHJ Active Layers

1
Department of Chemistry, University of Patras, University Campus, GR26504 Patras, Greece
2
Foundation for Research and Technology Hellas/Institute of Chemical Engineering Sciences (FORTH/ICE-HT), GR26504 Patras, Greece
*
Author to whom correspondence should be addressed.
Academic Editor: Frank Wiesbrock
Received: 11 November 2016 / Revised: 9 December 2016 / Accepted: 13 December 2016 / Published: 18 December 2016
(This article belongs to the Special Issue Hybrid Polymeric Materials)
View Full-Text   |   Download PDF [6523 KB, uploaded 19 December 2016]   |  

Abstract

Perfluorophenyl functionalities have been introduced as side chain substituents onto regioregular poly(3-hexyl thiophene) (rr-P3HT), under various percentages. These functional groups were then converted to azides which were used to create polymeric hybrid materials with fullerene species, either C60 or C70. The P3HT–fullerene hybrids thus formed were thereafter evaluated as potential compatibilizers of BHJ active layers comprising P3HT and fullerene based acceptors. Therefore, a systematic investigation of the optical and morphological properties of the purified polymer–fullerene hybrid materials was performed, via different complementary techniques. Additionally, P3HT:PC70BM blends containing various percentages of the herein synthesized hybrid material comprising rr-P3HT and C70 were investigated via Transmission Electron Microscopy (TEM) in an effort to understand the effect of the hybrids as additives on the morphology and nanophase separation of this typically used active layer blend for OPVs. View Full-Text
Keywords: rr-polythiophenes; perfluorophenyl functionalization; fullerene-polymer hybrids; P3HT:PCBM blends; organic photovoltaics (OPVs) rr-polythiophenes; perfluorophenyl functionalization; fullerene-polymer hybrids; P3HT:PCBM blends; organic photovoltaics (OPVs)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Kakogianni, S.; Andreopoulou, A.K.; Kallitsis, J.K. Synthesis of Polythiophene–Fullerene Hybrid Additives as Potential Compatibilizers of BHJ Active Layers. Polymers 2016, 8, 440.

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