Novel bifunctional molecule for photorefractive materials

摘要

We report on the synthesis and characterization of a novel photorefractive polymer conposite that consists of a bifunctional molecule based on the charge-transport molecule N, N'-diphenyl-N, N'-bis (3-methylphenyl)-[1, 1'-biphenyl]-4 4'-diamine (TPD). It is shown that the low values obtained for the gain coefficient and the diffraction efficiency (10 cm~-1 and 0.1/100, respectively) are a result of the low intrinsic trap density.