Donor−Acceptor Poly(thiophene-block-perylene diimide) Copolymers: Synthesis and Solar Cell Fabrication

Zhang, Qingling and Cirpan, A and Russell, TP and Emrick, T. (2009) Donor−Acceptor Poly(thiophene-block-perylene diimide) Copolymers: Synthesis and Solar Cell Fabrication. Macromolecules, 42 (4). p. 1079. ISSN 00249297

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Abstract

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%.

Item Type: Article
Uncontrolled Keywords: POLYMER PHOTOVOLTAIC CELLS; DIBLOCK COPOLYMERS; BLOCK-COPOLYMERS; REGIOREGULAR POLY(3-HEXYLTHIOPHENE); GRIGNARD METATHESIS; TRIBLOCK COPOLYMERS; POLYTHIOPHENE; MORPHOLOGY; MOBILITY
InterNano Taxonomy: Nanomanufacturing Processes > Nanocomposite Manufacturing
Collections: Nanomanufacturing Research Collection
Depositing User: Danielle Federa
Date Deposited: 17 Jun 2009 17:59
Last Modified: 06 Jul 2009 14:09
URI: http://eprints.internano.org/id/eprint/117

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