Charge trapping in photorefractive polymers

George G. Malliaras; Victor V. Krasnikov; Henk J. Bolink; Georges Hadziioannou

doi:10.1117/12.217307

23 August 1995 Charge trapping in photorefractive polymers

George G. Malliaras, Victor V. Krasnikov, Henk J. Bolink, Georges Hadziioannou

Proceedings Volume 2526, Xerographic Photoreceptors and Photorefractive Polymers; (1995) https://doi.org/10.1117/12.217307
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

Modification of the trap density of the photorefractive polymer composite poly(N-vinyl carbazole), 2,4,7-trinitro-9-fluorenone, and N,N-diethyl-para-nitrozniline is achieved with the addition of 4-(diethylamino)bensaldehyde diphenylhydrazone (DEH). Measurements of the response time and the phase shift of the photorefractive gratings indicate that at low concentrations DEH acts as a trap, while at higher concentrations a new charge transport pathway through hopping between DEH molecules is established. The transient behavior of these gratings further supports this picture.

Citation Download Citation

George G. Malliaras, Victor V. Krasnikov, Henk J. Bolink, and Georges Hadziioannou "Charge trapping in photorefractive polymers", Proc. SPIE 2526, Xerographic Photoreceptors and Photorefractive Polymers, (23 August 1995); https://doi.org/10.1117/12.217307

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