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Donor-acceptor poly(thiophene-block-perylene diimide) copolymers: Synthesis and solar cell fabrication
Date
2009-02-24
Author
ZHANG, Qingling
Çırpan, Ali
RUSSELL, Thomas P.
EMRICK, Todd
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Donor-acceptor diblock copolymers, composed of regioregular Poly(3-hexylthiophene) (rrP3HT) as the electron donor block and poly(perylene diimide acrylate) (PPDA) as the electron acceptor block, were prepared and used to fabricate a solar cell. Vinyl-terminated rrP3HT was synthesized by Grignard metathesis polymerization and converted to an alkoxyamine macroinitiator. This polythiophene macroinitiator was used in controlled free radical polymerization of a perylene diimide-containing acrylate. The targeted donor-acceptor diblock copolymers were prepared with low-to-moderate polydispersity indices ( 1.2-1.4) and molecular weights sufficiently high for producing films by spin-coating. These copolymers showed efficient photoluminescence quenching in the solid state, indicative of charge separation, and were Used to produce a solar cell with power conversion efficiency of 0.49%.
Subject Keywords
Morphology
,
Mobility
,
Regioregular Poly(3-Hexylthiophene)
,
Grignard Metathesis
,
Polymer Photovoltaic Cells
,
Diblock Copolymers
,
Block-Copolymers
,
Triblock Copolymers
,
Polythiophene
URI
https://hdl.handle.net/11511/37493
Journal
Macromolecules
DOI
https://doi.org/10.1021/ma801504e
Collections
Department of Chemistry, Article