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Proceedings Paper

New polythiophene block copolymers for potential light harvesting applications
Author(s): Shahin Maaref; Shanneth Thomas; Meina Wang; Sam-Shajing Sun
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Paper Abstract

This paper presents preliminary synthetic and physical study of a new polythiophene block copolymer. These are conjugated donor (D) block poly(hexylenedithiathiophene) copolymerized with an acceptor (A) block of fluorinated ester derivatized polythiophene via an aliphatic bridge (B) unit. Experimental results show that when -DBAB- type of block copolymer forms, there is strong photoluminescence (PL) quenching in -DBAB- relative to D/A blend or the pristine D or A blocks. PL quenching is attributed to both intra and inter chain photo induced electron transfer or charge separation. Since block copolymer can be easily tailored, this system appears attractive for light harvesting applications including photovoltaic applications.

Paper Details

Date Published: 8 September 2004
PDF: 8 pages
Proc. SPIE 5464, Organic Optoelectronics and Photonics, (8 September 2004); doi: 10.1117/12.546604
Show Author Affiliations
Shahin Maaref, Norfolk State Univ. (United States)
Shanneth Thomas, Norfolk State Univ. (United States)
Meina Wang, Norfolk State Univ. (United States)
Sam-Shajing Sun, Norfolk State Univ. (United States)

Published in SPIE Proceedings Vol. 5464:
Organic Optoelectronics and Photonics
Paul L. Heremans; Michele Muccini; Hans Hofstraat, Editor(s)

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