High-performance needle-shaped crystals in thin and ultrathin P(VDF-TrFE) films formed by melt recrystallization

Ju Han Kim; Dahl Young Khang

doi:10.1016/j.eurpolymj.2014.07.017

High-performance needle-shaped crystals in thin and ultrathin P(VDF-TrFE) films formed by melt recrystallization

Ju Han Kim, Dahl Young Khang

Department of Materials Science and Engineering

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

9 Citations (Scopus)

Abstract

The needle crystals, formed at high temperature annealing higher than melting point, in thin and ultrathin P(VDF-TrFE) ferroelectric films have been identified as high-performance ferroelectric elements in the films. Nanoscale piezoresponse force microscopy (PFM) imaging, spectroscopies, and lithographic writing on such individual needle crystal have clearly verified the good retention of ferroelectricity, while the non-needle surface does not. The surface coverage or areal density of such needle crystals has the same trend with the change of remenant polarization in samples, as a function of annealing temperature. Selective enrichment or separation of such needle crystals may open a novel way for high-performance devices based on P(VDF-TrFE).

Original language	English
Pages (from-to)	78-83
Number of pages	6
Journal	European Polymer Journal
Volume	59
DOIs	https://doi.org/10.1016/j.eurpolymj.2014.07.017
Publication status	Published - 2014 Oct

Bibliographical note

Funding Information:
This work was supported by the WCU program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology [R32-20031].

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Polymers and Plastics
Organic Chemistry
Materials Chemistry

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10.1016/j.eurpolymj.2014.07.017

Cite this

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title = "High-performance needle-shaped crystals in thin and ultrathin P(VDF-TrFE) films formed by melt recrystallization",

abstract = "The needle crystals, formed at high temperature annealing higher than melting point, in thin and ultrathin P(VDF-TrFE) ferroelectric films have been identified as high-performance ferroelectric elements in the films. Nanoscale piezoresponse force microscopy (PFM) imaging, spectroscopies, and lithographic writing on such individual needle crystal have clearly verified the good retention of ferroelectricity, while the non-needle surface does not. The surface coverage or areal density of such needle crystals has the same trend with the change of remenant polarization in samples, as a function of annealing temperature. Selective enrichment or separation of such needle crystals may open a novel way for high-performance devices based on P(VDF-TrFE).",

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note = "Funding Information: This work was supported by the WCU program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology [R32-20031]. ",

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doi = "10.1016/j.eurpolymj.2014.07.017",

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AU - Kim, Ju Han

AU - Khang, Dahl Young

N1 - Funding Information: This work was supported by the WCU program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology [R32-20031].

PY - 2014/10

Y1 - 2014/10

N2 - The needle crystals, formed at high temperature annealing higher than melting point, in thin and ultrathin P(VDF-TrFE) ferroelectric films have been identified as high-performance ferroelectric elements in the films. Nanoscale piezoresponse force microscopy (PFM) imaging, spectroscopies, and lithographic writing on such individual needle crystal have clearly verified the good retention of ferroelectricity, while the non-needle surface does not. The surface coverage or areal density of such needle crystals has the same trend with the change of remenant polarization in samples, as a function of annealing temperature. Selective enrichment or separation of such needle crystals may open a novel way for high-performance devices based on P(VDF-TrFE).

AB - The needle crystals, formed at high temperature annealing higher than melting point, in thin and ultrathin P(VDF-TrFE) ferroelectric films have been identified as high-performance ferroelectric elements in the films. Nanoscale piezoresponse force microscopy (PFM) imaging, spectroscopies, and lithographic writing on such individual needle crystal have clearly verified the good retention of ferroelectricity, while the non-needle surface does not. The surface coverage or areal density of such needle crystals has the same trend with the change of remenant polarization in samples, as a function of annealing temperature. Selective enrichment or separation of such needle crystals may open a novel way for high-performance devices based on P(VDF-TrFE).

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JO - European Polymer Journal

JF - European Polymer Journal

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High-performance needle-shaped crystals in thin and ultrathin P(VDF-TrFE) films formed by melt recrystallization

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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