Optical properties of the photorefractive polymeric composite with modified PVK polymer |
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| Authors: | In Kyu Moon Chil‐Sung Choi Nakjoong Kim |
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| Institution: | 1. Department of Chemistry, Sungkyunkwan University, 300 Cheoncheon‐Dong, Jangan‐Gu, Suwon, Gyeonggi‐Do 440‐746, Korea;2. Department of Chemistry, Hanyang University, Seoul 133‐791, Korea |
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| Abstract: | PolyN‐(2‐ethylhexyl)‐3‐vinylcarbazole has been synthesized by radical polymerization from N‐(2‐ethylhexyl)3‐vinyl‐carbazole. The 50‐μm thick photorefractive device containing 30 wt % piperidin‐4‐ylbenzylidene‐malononitrile showed a diffraction efficiency of 40% of 50 V/μm, which corresponded to a Δn of 0.8 × 10?3. The photorefractive response time was τ1 = 0.6 s. © 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 1695–1702, 2009 |
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| Keywords: | diffraction efficiency modified PVK photoconductivity photorefractive effect |
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