We study the photorefractive (PR) properties of a new kind of low glass-transition temperature (T-g) polymer composite based on layered photoconductive polymers, poly(p-phenylene terephthalate) carbazoles (PPT-CZs). These photoconductors consist of the rigid backbone of PPT with pendant oxyalkyl CZ groups. The compounds are doped with the photosensitizer C-60 and nonlinear optical chromophores diethylaminodicyanostyrene (DDCST), and no plasticizers are added. When the host polymers are mixed with various PR ingredients, the layers are preserved and their layer distance increases, indicating that all the guest molecules are confined to the nanoscale interlayer space. These composites showed very low T-g values (