Pyroelectric properties in polar hemicyanine Langmuir-Blodgett multilayer films

被引：0

作者：

Ma, SH ^{[1
]}

Yan, M ^{[1
]}

Wang, WC ^{[1
]}

Zhang, ZM ^{[1
]}

Chen, ZH ^{[1
]}

Liu, PL ^{[1
]}

Zhu, JH ^{[1
]}

Qu, CF ^{[1
]}

Lin, SW ^{[1
]}

机构：

[1] Fudan Univ, Dept Phys, Lab Laser Phys & Opt, Shanghai 200433, Peoples R China

来源：

DETECTORS, FOCAL PLANE ARRAYS, AND IMAGING DEVICES II | 1998年 / 3553卷

关键词：

pyroelectricity; second harmonic generation (SHG); infrared transmission spectra; Langmuir-Blodgett films; organic materials;

D O I：

10.1117/12.318074

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Langmuir-Blodgett (LB) films of hemicyanine 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 (SHG). The physical mechanism of pyroelectricity in the films was also discussed.

引用

页码：207 / 210

页数：4