Pyroelectric activity in polar hemicyanine Langmuir-Blodgett multilayer films

Shihong Ma; Mei Yan; Wencheng Wang; Jinglan Sun; Xiangjian Meng; Junhao Chu

Pyroelectric activity in polar hemicyanine Langmuir-Blodgett multilayer films

Shihong Ma^*
, Mei Yan
, Wencheng Wang
, Jinglan Sun
, Xiangjian Meng
, Junhao Chu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The Langmuir-Blodgett (LB) films of hemicyanine dyes were prepared by LB technique. The films showed pyroelectric effect. The pyroelectric coefficient measured by the method of integrated charges was 12 μC·m^-2·K^-1 at room temperature, and the relationship between the orientation of DAEP dye in the films and temperature was studied by polarized Fourier transform infrared spectroscopy (FTIR) and Second harmonic generation (SHG). It was indicated that the observed pyroelectricity can be ascribed preliminarily to the structure modification of the polar head groups and the deterioration of the film framework (the first-order phase transition) resulted in the change of spontaneous polarization with temperature.

Original language	English
Pages (from-to)	S68-S70
Journal	Chinese Optics Letters
Volume	3
Issue number	SUPPL.
State	Published - Aug 2005
Externally published	Yes

Cite this

@article{9029c456e9d14057b4387c536bf83103,

title = "Pyroelectric activity in polar hemicyanine Langmuir-Blodgett multilayer films",

abstract = "The Langmuir-Blodgett (LB) films of hemicyanine dyes were prepared by LB technique. The films showed pyroelectric effect. The pyroelectric coefficient measured by the method of integrated charges was 12 μC·m-2·K-1 at room temperature, and the relationship between the orientation of DAEP dye in the films and temperature was studied by polarized Fourier transform infrared spectroscopy (FTIR) and Second harmonic generation (SHG). It was indicated that the observed pyroelectricity can be ascribed preliminarily to the structure modification of the polar head groups and the deterioration of the film framework (the first-order phase transition) resulted in the change of spontaneous polarization with temperature.",

author = "Shihong Ma and Mei Yan and Wencheng Wang and Jinglan Sun and Xiangjian Meng and Junhao Chu",

year = "2005",

month = aug,

language = "英语",

volume = "3",

pages = "S68--S70",

journal = "Chinese Optics Letters",

issn = "1671-7694",

publisher = "Optica Publishing Group (formerly OSA)",

number = "SUPPL.",

}

TY - JOUR

T1 - Pyroelectric activity in polar hemicyanine Langmuir-Blodgett multilayer films

AU - Ma, Shihong

AU - Yan, Mei

AU - Wang, Wencheng

AU - Sun, Jinglan

AU - Meng, Xiangjian

AU - Chu, Junhao

PY - 2005/8

Y1 - 2005/8

N2 - The Langmuir-Blodgett (LB) films of hemicyanine dyes were prepared by LB technique. The films showed pyroelectric effect. The pyroelectric coefficient measured by the method of integrated charges was 12 μC·m-2·K-1 at room temperature, and the relationship between the orientation of DAEP dye in the films and temperature was studied by polarized Fourier transform infrared spectroscopy (FTIR) and Second harmonic generation (SHG). It was indicated that the observed pyroelectricity can be ascribed preliminarily to the structure modification of the polar head groups and the deterioration of the film framework (the first-order phase transition) resulted in the change of spontaneous polarization with temperature.

AB - The Langmuir-Blodgett (LB) films of hemicyanine dyes were prepared by LB technique. The films showed pyroelectric effect. The pyroelectric coefficient measured by the method of integrated charges was 12 μC·m-2·K-1 at room temperature, and the relationship between the orientation of DAEP dye in the films and temperature was studied by polarized Fourier transform infrared spectroscopy (FTIR) and Second harmonic generation (SHG). It was indicated that the observed pyroelectricity can be ascribed preliminarily to the structure modification of the polar head groups and the deterioration of the film framework (the first-order phase transition) resulted in the change of spontaneous polarization with temperature.

UR - https://www.scopus.com/pages/publications/33644638089

M3 - 文章

AN - SCOPUS:33644638089

SN - 1671-7694

VL - 3

SP - S68-S70

JO - Chinese Optics Letters

JF - Chinese Optics Letters

IS - SUPPL.

ER -

Pyroelectric activity in polar hemicyanine Langmuir-Blodgett multilayer films

Abstract

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