Langmuir-Blodgett Film Formation and Optical Second Harmoni Generation of a Hemicyanine Derivative |
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| Authors: | LIU Yun-qi XU Yu ZHU Dao-ben ZONG Yun QIN Jin-gui XIA Xiao-hua ZHAO Xin-sheng |
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| Affiliation: | 1. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P. R. China;2. Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China;3. College of Chemistry and Molecular Engineering, Peking University, Beijing, 1000871, P. R. China |
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| Abstract: | ![]()
Langmuir-Blodgett (LB) film of a hemicyanine derivative, (E)-N-hexadecyl-4-[2-(4-dimethylaminophenyl)ethenyl]pyridinium bromide (Hc) was fabricated. The Langmuir film of Hc exhibited good transfer behaviour. Optical second harmonic generation from the LB film was measured. Macroscopic second-order susceptibilily, molecular hyperpolarizability and tilt angle for the molecules on a substrate were estimated to be 7.06×10-6 esu, 6.47×10-27 esu,and 31.6° respectively. |
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| Keywords: | Hemicyanine Langmuir-Blodgett films Second harmonic generation |
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