photorefractive effect of polymer doped inorganic nanoparticles is reported. In the polymer PR material
Cu
2
S/CdS/ZnS nanoparticles were used as photosensitizer
PVK was used as carrier transport agent
and EPNAC moleculs were used as electroptic molecules. Two-wave-mixing was studied. The experimental results prove that this kind of nanoparticle can be used as photosensitizer in polymer PR materials.