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Proceedings Paper

Bifunctional dimer and polymers for photorefractive applications
Author(s): Loic Mager; Stephane Mery
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Paper Abstract

We present the electro-optic, photoconductive and photorefractive characterization of a novel organic photorefractive structure. It is composed of a bifunctional dimeric molecule combining both photoconduction and electro-optic properties. This low molecular weight material is a glass, showing a glass transition temperature (Tg) at 27 degrees C. Doped with (2,4,7-trinitro-9-fluorenylidene)malononitrile (TNFDM) as photosensitizer (1% wt), this dimer exhibits 200 cm-1 photorefractive gain at 633 urn for 50 V μm-1 electric field applied. Compared to usual doped polymers which generally show inhomogeneities in the mixtures, this material presents good optical quality thanks to its monophasic character. A serie of functionalized copolymer has also been synthesized, in which the ratio of the chromophore moieties over the charge carrier moieties was varied. These copolymers show photoconductivity but no photorefractivity.

Paper Details

Date Published: 9 October 1997
PDF: 8 pages
Proc. SPIE 3144, Xerographic Photoreceptors and Organic Photorefractive Materials II, (9 October 1997); doi: 10.1117/12.290236
Show Author Affiliations
Loic Mager, Institut de Physique et de Chimie des Materiaux de Strasbourg (France)
Stephane Mery, Institut de Physique et de Chimie des Materiaux de Strasbourg (France)


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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