High performance photorefractive materials based on mesophase photoconductive polymer

In this work we study a new mesophase photoconductive polymer, PPT-TPA with triphenylamine (TPA) groups. The photorefractive composites consisted of the mesophase photoconductive polymer PPT-TPA(n=10) (64.5 wt.%), the chromophore diethylaminodicyanostyrene (DDCST) (35 wt.%), and the sensitizer C/sub 60/ (0.5 wt.%). No plasticizers were added.