Abstract
We studied the electric-field-induced birefringence, the photoconductivity and the photorefractive properties of photorefractive polymer composites based on N,N'-diphenyl-N,N'-bis(3-methylphenyl)-[1,1'-biphenyl]-4,4'-diamine (TPD). Photorefractive response rate is improved in TPD-based photorefractive polymer, composed of TPD, polystyrene (PS), 4-butoxy-3-propyl-1-(4'-nitrophenylazo)benzene (m3p4) and C 6 0 . We obtained the photorefractive response time of as fast as 3.2 ms (@I = 837 mW/cm 2 , E = 40 V/μm). The photoconductivity of TPD-based photorefractive polymer is found to be greater than that of the PVK-based one.
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