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Proceedings Paper

Synthesis and characterization of a novel –D-B-A-B- block copolymer system for potential light harvesting applications
Author(s): Sam-Shajing Sun; Zhen Fan; Yiqing Wang; Charles Taft; James H. Haliburton; Shahin Maaref
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Paper Abstract

Supra-molecular and nano-structured electro-active polymers are potentially useful for developing variety inexpensive and flexible shaped opto-electronic devices. In the case of organic photovoltaic materials or devices, for instance, photo induced electrons and holes need to be separated and transported in organic acceptor (A) and donor (D) phases respectively. In this paper, preliminary results of synthesis and characterizations of a coupled block copolymers containing a conjugated donor block (RO-PPV), a conjugated acceptor block (SF-PPV), and some of their electronic/optical properties are presented. While the donor block film has a strong PL emission at around 570 nm, and acceptor block film has a strong PL emission at around 590 nm, the PL emissions of final -D-B-A-B- block copolymer films were quenched by over 99%. Experimental results demonstrated an effective photo induced electron transfer and charge separation due to the interfaces of donor and acceptor blocks. The system is very promising for variety light harvesting applications, including “plastic” photovoltaic devices.

Paper Details

Date Published: 26 February 2003
PDF: 11 pages
Proc. SPIE 4801, Organic Photovoltaics III, (26 February 2003); doi: 10.1117/12.452414
Show Author Affiliations
Sam-Shajing Sun, Norfolk State Univ. (United States)
Zhen Fan, Norfolk State Univ. (United States)
Yiqing Wang, Norfolk State Univ. (United States)
Charles Taft, Norfolk State Univ. (United States)
James H. Haliburton, Norfolk State Univ. (United States)
Shahin Maaref, Norfolk State Univ. (United States)

Published in SPIE Proceedings Vol. 4801:
Organic Photovoltaics III
Zakya H. Kafafi, Editor(s)

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