Organic Photoelectric Materials and Applications

      PR effect refers to a spatial modulation of refractive index due to the light-induced redistribution of charge. Potential applications: high-density data storage, reversible optical holography, noise-free optical image amplification, phase conjugation and information processing, etc.

The process of formation of photorefractive grating.

Effective EO coefficient measurement  system

Two-beam coupling and four-wave mixing experimental system

 EL is the phenomenon including three processes of charge injection, electron-hole recombination and radiation-decay. It is candidate to substitute  the liquid crystal to fabricate the ultra-thin flat panel displays.

       Pure white light emission. CIE chromaticity diagram:the point(i) shows the color of the light emitted from the device ITO/TPD,doped with 2.5wt.%CNA, and i wt.%DCDM/BCP/Alq /Mg:Ag/Ag cap, i=1,2,3,4,5 and 6

     The dependence of luminous intensity and injecting-current-density on the applied electric field.