High-speed TPD-based Photorefractive Polymer Composites

摘要

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_(60). 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.