Pyroelectric figure of merit in alternating hemicyanine/NC Langmuir-Blodgett films incorporating barium ions

Shihong Ma; Shuhong Li; Wencheng Wang; Genshui Wang; Jinglan Sun; Xiangjian Meng; Junhao Chu

doi:10.1016/j.colsurfa.2005.11.050

Pyroelectric figure of merit in alternating hemicyanine/NC Langmuir-Blodgett films incorporating barium ions

Shihong Ma^*
, Shuhong Li
, Wencheng Wang
, Genshui Wang
, Jinglan Sun
, Xiangjian Meng
, Junhao Chu

^*Corresponding author for this work

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

1 Scopus citations

Abstract

Pyroelectric properties in alternating hemicyanine (DAEP)/nitrogencrown (NC) Langmuir-Blodgett (LB) films and effects of incorporating barium cations on pyroelectric behaviors have been investigated. Its pyroelectric coefficient measured is found to be 58 μC m^-2 K^-1at 300 K. Their dielectric properties have been measured and used to determine the figures of merit in thermal devices. Relative permittivity (ε_r) and dielectric loss values (tan δ) of pyroelectric films (in the range of 1-100 KHz) are found to be 2.34-1.96 and 0.08-0.04, respectively. These data give a maximum pyroelectric figure of merit of 150 μC m^-2 K^-1 in the alternating LB films incorporating barium ions. The effects of different deposition on pyroelectric properties are also discussed in this paper.

Original language	English
Pages (from-to)	74-77
Number of pages	4
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	284-285
DOIs	https://doi.org/10.1016/j.colsurfa.2005.11.050
State	Published - 15 Aug 2006
Externally published	Yes

Keywords

Dielectric property
Langmuir-Blodgett films
Metallic cation
Pyroelectricity

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10.1016/j.colsurfa.2005.11.050

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title = "Pyroelectric figure of merit in alternating hemicyanine/NC Langmuir-Blodgett films incorporating barium ions",

abstract = "Pyroelectric properties in alternating hemicyanine (DAEP)/nitrogencrown (NC) Langmuir-Blodgett (LB) films and effects of incorporating barium cations on pyroelectric behaviors have been investigated. Its pyroelectric coefficient measured is found to be 58 μC m-2 K-1at 300 K. Their dielectric properties have been measured and used to determine the figures of merit in thermal devices. Relative permittivity (εr) and dielectric loss values (tan δ) of pyroelectric films (in the range of 1-100 KHz) are found to be 2.34-1.96 and 0.08-0.04, respectively. These data give a maximum pyroelectric figure of merit of 150 μC m-2 K-1 in the alternating LB films incorporating barium ions. The effects of different deposition on pyroelectric properties are also discussed in this paper.",

keywords = "Dielectric property, Langmuir-Blodgett films, Metallic cation, Pyroelectricity",

author = "Shihong Ma and Shuhong Li and Wencheng Wang and Genshui Wang and Jinglan Sun and Xiangjian Meng and Junhao Chu",

year = "2006",

month = aug,

day = "15",

doi = "10.1016/j.colsurfa.2005.11.050",

language = "英语",

volume = "284-285",

pages = "74--77",

journal = "Colloids and Surfaces A: Physicochemical and Engineering Aspects",

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}

TY - JOUR

T1 - Pyroelectric figure of merit in alternating hemicyanine/NC Langmuir-Blodgett films incorporating barium ions

AU - Ma, Shihong

AU - Li, Shuhong

AU - Wang, Wencheng

AU - Wang, Genshui

AU - Sun, Jinglan

AU - Meng, Xiangjian

AU - Chu, Junhao

PY - 2006/8/15

Y1 - 2006/8/15

N2 - Pyroelectric properties in alternating hemicyanine (DAEP)/nitrogencrown (NC) Langmuir-Blodgett (LB) films and effects of incorporating barium cations on pyroelectric behaviors have been investigated. Its pyroelectric coefficient measured is found to be 58 μC m-2 K-1at 300 K. Their dielectric properties have been measured and used to determine the figures of merit in thermal devices. Relative permittivity (εr) and dielectric loss values (tan δ) of pyroelectric films (in the range of 1-100 KHz) are found to be 2.34-1.96 and 0.08-0.04, respectively. These data give a maximum pyroelectric figure of merit of 150 μC m-2 K-1 in the alternating LB films incorporating barium ions. The effects of different deposition on pyroelectric properties are also discussed in this paper.

AB - Pyroelectric properties in alternating hemicyanine (DAEP)/nitrogencrown (NC) Langmuir-Blodgett (LB) films and effects of incorporating barium cations on pyroelectric behaviors have been investigated. Its pyroelectric coefficient measured is found to be 58 μC m-2 K-1at 300 K. Their dielectric properties have been measured and used to determine the figures of merit in thermal devices. Relative permittivity (εr) and dielectric loss values (tan δ) of pyroelectric films (in the range of 1-100 KHz) are found to be 2.34-1.96 and 0.08-0.04, respectively. These data give a maximum pyroelectric figure of merit of 150 μC m-2 K-1 in the alternating LB films incorporating barium ions. The effects of different deposition on pyroelectric properties are also discussed in this paper.

KW - Dielectric property

KW - Langmuir-Blodgett films

KW - Metallic cation

KW - Pyroelectricity

UR - https://www.scopus.com/pages/publications/33744910346

U2 - 10.1016/j.colsurfa.2005.11.050

DO - 10.1016/j.colsurfa.2005.11.050

M3 - 文章

AN - SCOPUS:33744910346

SN - 0927-7757

VL - 284-285

SP - 74

EP - 77

JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

ER -

Pyroelectric figure of merit in alternating hemicyanine/NC Langmuir-Blodgett films incorporating barium ions

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Keywords

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