Thickness dependence of ferroelectricity in hemicyanine Langmuir-Blodgett multilayer films

Shu Hong Li; Shi Hong Ma; Bo Li; Jing Lan Sun; Gen Shui Wang; Xiang Jian Meng; Jun Hao Chu; Wen Cheng Wang

Thickness dependence of ferroelectricity in hemicyanine Langmuir-Blodgett multilayer films

Shu Hong Li, Shi Hong Ma, Bo Li, Jing Lan Sun, Gen Shui Wang, Xiang Jian Meng, Jun Hao Chu, Wen Cheng Wang

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

Abstract

Typical ferroelectricity in Langmuir-Blodgett multilayers prepared from hemicyanine dyes has been demonstrated by observed ferroelectric hysteresis loop. Their ferroelectric properties are found to be thickness dependent. The coercive field decreased with increasing film thickness monotonously and may be approximated by a power law E_c ∞ N^-4/3 in the range from 30 to 200 nm, which is coincident with other conventional ferroelectric materials. The optimum thickness of hemicyanine LB multiplayer is about 60 nm and their optimum value as ferroelectric storage-devices has the same order of magnitude as P(VdF-TrEE) (n:n = 70:30).

Original language	English
Pages (from-to)	1253-1257
Number of pages	5
Journal	Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica
Volume	20
Issue number	10
State	Published - Oct 2004
Externally published	Yes

Keywords

Coercive field
Ferroelectricity
Hysteresis loop
Langmuir-Blodgett films
Optimum value

Cite this

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title = "Thickness dependence of ferroelectricity in hemicyanine Langmuir-Blodgett multilayer films",

abstract = "Typical ferroelectricity in Langmuir-Blodgett multilayers prepared from hemicyanine dyes has been demonstrated by observed ferroelectric hysteresis loop. Their ferroelectric properties are found to be thickness dependent. The coercive field decreased with increasing film thickness monotonously and may be approximated by a power law Ec ∞ N-4/3 in the range from 30 to 200 nm, which is coincident with other conventional ferroelectric materials. The optimum thickness of hemicyanine LB multiplayer is about 60 nm and their optimum value as ferroelectric storage-devices has the same order of magnitude as P(VdF-TrEE) (n:n = 70:30).",

keywords = "Coercive field, Ferroelectricity, Hysteresis loop, Langmuir-Blodgett films, Optimum value",

author = "Li, \{Shu Hong\} and Ma, \{Shi Hong\} and Bo Li and Sun, \{Jing Lan\} and Wang, \{Gen Shui\} and Meng, \{Xiang Jian\} and Chu, \{Jun Hao\} and Wang, \{Wen Cheng\}",

year = "2004",

month = oct,

language = "英语",

volume = "20",

pages = "1253--1257",

journal = "Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica",

issn = "1000-6818",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Thickness dependence of ferroelectricity in hemicyanine Langmuir-Blodgett multilayer films

AU - Li, Shu Hong

AU - Ma, Shi Hong

AU - Li, Bo

AU - Sun, Jing Lan

AU - Wang, Gen Shui

AU - Meng, Xiang Jian

AU - Chu, Jun Hao

AU - Wang, Wen Cheng

PY - 2004/10

Y1 - 2004/10

N2 - Typical ferroelectricity in Langmuir-Blodgett multilayers prepared from hemicyanine dyes has been demonstrated by observed ferroelectric hysteresis loop. Their ferroelectric properties are found to be thickness dependent. The coercive field decreased with increasing film thickness monotonously and may be approximated by a power law Ec ∞ N-4/3 in the range from 30 to 200 nm, which is coincident with other conventional ferroelectric materials. The optimum thickness of hemicyanine LB multiplayer is about 60 nm and their optimum value as ferroelectric storage-devices has the same order of magnitude as P(VdF-TrEE) (n:n = 70:30).

AB - Typical ferroelectricity in Langmuir-Blodgett multilayers prepared from hemicyanine dyes has been demonstrated by observed ferroelectric hysteresis loop. Their ferroelectric properties are found to be thickness dependent. The coercive field decreased with increasing film thickness monotonously and may be approximated by a power law Ec ∞ N-4/3 in the range from 30 to 200 nm, which is coincident with other conventional ferroelectric materials. The optimum thickness of hemicyanine LB multiplayer is about 60 nm and their optimum value as ferroelectric storage-devices has the same order of magnitude as P(VdF-TrEE) (n:n = 70:30).

KW - Coercive field

KW - Ferroelectricity

KW - Hysteresis loop

KW - Langmuir-Blodgett films

KW - Optimum value

UR - https://www.scopus.com/pages/publications/7244238001

M3 - 文章

AN - SCOPUS:7244238001

SN - 1000-6818

VL - 20

SP - 1253

EP - 1257

JO - Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica

JF - Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica

IS - 10

ER -

Thickness dependence of ferroelectricity in hemicyanine Langmuir-Blodgett multilayer films

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Keywords

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