1998•Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIERequires access
Pyroelectric properties in polar hemicyanine Langmuir-Blodgett multilayer films
Shihong Ma, Mei Yan, Wencheng Wang, Zhiming Zhang, Zhanghai Chen, Pulin Liu, Junhao Zhu, Cuifeng Qu, Shengwei Lin
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Abstract
The Langmuir-Blodgett (LB) films of hemocyanin dyes were prepared by LB technique. The films show pyroelectric effect. The pyroelectric coefficient measured by the method of integrated charges is 12 (mu) C m-2 K-1 at room temperature. The relationship between the orientation of DAEP in the films and temperature was studied by polarized FTIR spectroscopy and second-harmonic generation. The physical mechanism of pyroelectricity in the films was also discussed.