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15 October 1996 Control of charge trapping in a novel photorefractive composite consisting of a bifunctional molecule based on TPD
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Abstract
A novel photorefractive polymer is presented, based on a bifunctional molecule which is a derivative of the well known charge transport molecule N,N'-diphenyl-N,N'-bis(3- methylphenyl)-[1,1'-biphenyl]-4,4'-diamine (TPD). In this material the low intrinsic tap density causes the rather low value for the gain coefficient as well as the 90 degree phase shift between the refractive index grating and the illumination pattern. The trap density can effectively be modified by adding small amounts of 1,4-bis-(N,N- dimethylamino)benzene, resulting in a large increase in gain coefficient and a lower phase shift.
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Henk J. Bolink, C. Arts, Victor V. Krasnikov, George G. Malliaras, and Georges Hadziioannou "Control of charge trapping in a novel photorefractive composite consisting of a bifunctional molecule based on TPD", Proc. SPIE 2850, Organic Photorefractive Materials and Xerographic Photoreceptors, (15 October 1996); https://doi.org/10.1117/12.254252
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