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Proceedings Paper

Synthesis and characterization of novel organic photorefractive materials
Author(s): Kevin D. Belfield; Chandrasekhar Chinna; Ousama Najjar; Katherine J. Schafer; Suresh R Sriram
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Paper Abstract

Nonlinear optical (NLO) chromophores are essential components in photorefractive materials. Several stilbene derivatives, functionalized with an electron-donating substituent in the 4-position and electron-withdrawing substitutent in the 41-position, are known to display second-order NLO properties. Commonly used electron-donating groups include ether and amino, while electron-withdrawing groups include nitrile, nitro, and sulfone. Many of the NLO chomophores have absorptions that extend well into the visible wavelength range, potentially interfering with charge generation or sensitization. Additionally, crystallization of NLO chromophores in doped polymer systems often occurs and is undesirable. We wish to report the synthesis and characterization of a new class of electron donor-acceptor substituted low molar mass and polymeric stilbenes. The phosphonate ester functionality is employed as the electron-withdrawing moiety, affording excellent solubility. These materials are single component, i.e., the charge transport functionality is covalently incorporated into the NLO chromophore.

Paper Details

Date Published: 9 October 1997
PDF: 12 pages
Proc. SPIE 3144, Xerographic Photoreceptors and Organic Photorefractive Materials II, (9 October 1997); doi: 10.1117/12.290235
Show Author Affiliations
Kevin D. Belfield, Univ. of Detroit Mercy (United States)
Chandrasekhar Chinna, Univ. of Detroit Mercy (United States)
Ousama Najjar, Univ. of Detroit Mercy (United States)
Katherine J. Schafer, Univ. of Detroit Mercy (United States)
Suresh R Sriram, Univ. of Detroit Mercy (United States)

Published in SPIE Proceedings Vol. 3144:
Xerographic Photoreceptors and Organic Photorefractive Materials II
Stephen Ducharme; Stephen Ducharme; James W. Stasiak, Editor(s)

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