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Proceedings Paper

Design of highly soluble extended pi-electron oligomers capable of supporting stabilized delocalized bipolaronic states for NLO applications
Author(s): Kathleen O. Havelka; Charles W. Spangler
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Paper Abstract

Several electroactive polymers, such as polyacetylene, polythlophene, poly (p-phenylene vinylene), and poly (2, 5-thienylene vinylene) have shown promise as NLO-active materials over the past few years. Extended conjugation pi-electron polymers, however, suffer from solubility and processability problems. Several recent experimental and theoretical studies have indicated that long conjugation sequences may not be necessary for enhanced (chi) (3) activity. During the past year we have utilized a suggestion of Wudl and coworkers and discovered that long, branched-chain alkyloxy groups can greatly enhance the solubility of various oligomers related to the above polymers. In this paper we present studies directed toward the incorporation of oligomeric subunits in formal copolymers and how stable bipolaronic charge states can be formed in NLO-active repeat units.

Paper Details

Date Published: 1 December 1991
PDF: 9 pages
Proc. SPIE 1560, Nonlinear Optical Properties of Organic Materials IV, (1 December 1991); doi: 10.1117/12.50706
Show Author Affiliations
Kathleen O. Havelka, Northern Illinois Univ. (United States)
Charles W. Spangler, Northern Illinois Univ. (United States)


Published in SPIE Proceedings Vol. 1560:
Nonlinear Optical Properties of Organic Materials IV
Kenneth D. Singer, Editor(s)

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