Macromolecular Research, Vol.18, No.3, 279-283, March, 2010
High-performance photorefractive polymer composites doped with 2-piperidino-5-thienylmalononitrile chromophore
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We report photorefractive (PR) polymer composites doped with 2-piperidino-5-thienylmalononitrile chromophore. The PR polymer composites showed a glass transition temperature of 25 similar to 27 A degrees C, good transparency at 633 nm and long shelf lifetimes at room temperature. The PR polymer composites with a thickness of 100 mu m showed a maximum diffraction efficiency of 77 similar to 91% and a rapid response time of 110 similar to 980 ms at the glass transition temperature. In addition, the composite C3 was observed at a video-rate response time at 35 A degrees C.
Keywords:photorefractive;2-piperidino-5-thienylmalononitrile;photoconductivity;diffraction efficiency;PR response time
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