Humidity effect of domain wall roughening behavior in ferroelectric copolymer thin films

Kwang Wo Park; Hosung Seo; Jiyoon Kim; Daehee Seol; Jongin Hong; Yunseok Kim

doi:10.1088/0957-4484/25/35/355703

Humidity effect of domain wall roughening behavior in ferroelectric copolymer thin films

Kwang Wo Park, Hosung Seo, Jiyoon Kim, Daehee Seol, Jongin Hong, Yunseok Kim

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

14 Scopus citations

Abstract

We have demonstrated that domain switching in ferroelectric copolymer films can be significantly affected by humidity. With increasing relative humidity (RH), we observed larger domains with highly irregular boundaries as a result of lateral spreading of the tip-induced electric field that originates from water adsorption. Fractal dimension study of irregular domains reveals that the fractal dimension is higher in cases where the RH is higher. The results show that the RH is one of the major switching parameters in ferroelectric copolymers, and therefore could allow clear understanding with regard to domain switching behavior in the ferroelectric copolymer films under ambient conditions.

Original language	English
Article number	355703
Journal	Nanotechnology
Volume	25
Issue number	35
DOIs	https://doi.org/10.1088/0957-4484/25/35/355703
State	Published - 5 Sep 2014

Keywords

ferroelectric copolymer
fractal dimension
humidity
P(VDF-TrFE)
piezoresponse force microscopy

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10.1088/0957-4484/25/35/355703

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title = "Humidity effect of domain wall roughening behavior in ferroelectric copolymer thin films",

abstract = "We have demonstrated that domain switching in ferroelectric copolymer films can be significantly affected by humidity. With increasing relative humidity (RH), we observed larger domains with highly irregular boundaries as a result of lateral spreading of the tip-induced electric field that originates from water adsorption. Fractal dimension study of irregular domains reveals that the fractal dimension is higher in cases where the RH is higher. The results show that the RH is one of the major switching parameters in ferroelectric copolymers, and therefore could allow clear understanding with regard to domain switching behavior in the ferroelectric copolymer films under ambient conditions.",

keywords = "ferroelectric copolymer, fractal dimension, humidity, P(VDF-TrFE), piezoresponse force microscopy",

author = "Park, \{Kwang Wo\} and Hosung Seo and Jiyoon Kim and Daehee Seol and Jongin Hong and Yunseok Kim",

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doi = "10.1088/0957-4484/25/35/355703",

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T1 - Humidity effect of domain wall roughening behavior in ferroelectric copolymer thin films

AU - Park, Kwang Wo

AU - Seo, Hosung

AU - Kim, Jiyoon

AU - Seol, Daehee

AU - Hong, Jongin

AU - Kim, Yunseok

PY - 2014/9/5

Y1 - 2014/9/5

N2 - We have demonstrated that domain switching in ferroelectric copolymer films can be significantly affected by humidity. With increasing relative humidity (RH), we observed larger domains with highly irregular boundaries as a result of lateral spreading of the tip-induced electric field that originates from water adsorption. Fractal dimension study of irregular domains reveals that the fractal dimension is higher in cases where the RH is higher. The results show that the RH is one of the major switching parameters in ferroelectric copolymers, and therefore could allow clear understanding with regard to domain switching behavior in the ferroelectric copolymer films under ambient conditions.

AB - We have demonstrated that domain switching in ferroelectric copolymer films can be significantly affected by humidity. With increasing relative humidity (RH), we observed larger domains with highly irregular boundaries as a result of lateral spreading of the tip-induced electric field that originates from water adsorption. Fractal dimension study of irregular domains reveals that the fractal dimension is higher in cases where the RH is higher. The results show that the RH is one of the major switching parameters in ferroelectric copolymers, and therefore could allow clear understanding with regard to domain switching behavior in the ferroelectric copolymer films under ambient conditions.

KW - ferroelectric copolymer

KW - fractal dimension

KW - humidity

KW - P(VDF-TrFE)

KW - piezoresponse force microscopy

UR - https://www.scopus.com/pages/publications/84906092395

U2 - 10.1088/0957-4484/25/35/355703

DO - 10.1088/0957-4484/25/35/355703

M3 - Article

AN - SCOPUS:84906092395

SN - 0957-4484

VL - 25

JO - Nanotechnology

JF - Nanotechnology

IS - 35

M1 - 355703

ER -

Humidity effect of domain wall roughening behavior in ferroelectric copolymer thin films

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