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Mingxin Ye,Lei Xu,Jieyun Yan,Liying Liu,Liyong Ji,Wencheng Wang 한국물리학회 2004 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.44 No.32
Photo-degradation of electric eld poled alpha0-cyano-40-nitro-4-N,N-dimethylaminostilbene (CNDS) doped polymer was investigated by second-harmonic generation (SHG), UV-Vis absorption and FTIR. We found that the addition of a cyano group makes CNDS much more easily photoisomerized, and thus destroys the molecular ordering in poled chromophore doped polymers. A comparison experiment revealed that the photo-isomerization of CNDS is even easier than that of a modal system of azobenzene, which shows that CNDS has potential applications, such as in optical switches.