Highly Efficient Photorefractive System Based on Carbazole-Substituted Poly(Siloxane)
2000
Abstract Photorefractive polymer composite was prepared with carbazole-substituted poly(siloxane) as a host polymer, NLO chromophore and 2,4,7-trinitro-9-fluorenone as a sensitizer. This composite exhibited excellent photorefractive property. The gain coefficient determined by 2-beam coupling measurement was 250 cm −1 at 80 V/μm. And the composite was very stable toward phase separation.
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