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Proceedings Paper

Complementary grating dynamics in photorefractive polymers with Alq3
Author(s): Cory W. Christenson; Jayan Thomas; Pierre-Alexandre Blanche; Ram Voorakaranam; Robert A. Norwood; Michiharu Yamamoto; N. Peyghambarian
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Paper Abstract

The electron transporting molecule tris(8-hydroxyquinoline) aluminum (Alq3) was introduced into a photorefractive composite in a low density to study the effects of electron traps on the performance. Compared to a control sample, Alq3 samples exhibited higher dielectric strength, over-modulation at reduced voltage, and increased writing speed. Transient measurements indicated grating revelation via decay of a competing grating. The dynamics are consistent with a bipolar charge transport model. Overall, Alq3 improves the sensitivity, trapping, and breakdown voltage without significant losses in absorption or phase stability.

Paper Details

Date Published: 1 March 2010
PDF: 4 pages
Proc. SPIE 7599, Organic Photonic Materials and Devices XII, 759905 (1 March 2010); doi: 10.1117/12.841039
Show Author Affiliations
Cory W. Christenson, College of Optical Sciences, The Univ. of Arizona (United States)
Jayan Thomas, College of Optical Sciences, The Univ. of Arizona (United States)
Pierre-Alexandre Blanche, College of Optical Sciences, The Univ. of Arizona (United States)
Ram Voorakaranam, College of Optical Sciences, The Univ. of Arizona (United States)
Robert A. Norwood, College of Optical Sciences, The Univ. of Arizona (United States)
Michiharu Yamamoto, Nitto Denko Technical Corp. (United States)
N. Peyghambarian, College of Optical Sciences, The Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 7599:
Organic Photonic Materials and Devices XII
Robert L. Nelson; François Kajzar; Toshikuni Kaino, Editor(s)

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