Metal salt-induced ferroelectric crystalline phase in poly(vinylidene fluoride) films

Sun Yoon; Arun Anand Prabu; Kap Jin Kim; Cheolmin Park

doi:10.1002/marc.200800108

Metal salt-induced ferroelectric crystalline phase in poly(vinylidene fluoride) films

Sun Yoon, Arun Anand Prabu, Kap Jin Kim, Cheolmin Park

Department of Materials Science and Engineering

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

66 Citations (Scopus)

Abstract

In this Communication, the effect of varying mass fractions (0-20 wt-%) of calcium chloride (CaCl₂) salt on the α- and β-phase content of poly(vinylidene fluoride) (PVDF) as-cast films were investigated. Spectral and X-ray studies revealed the maximum ferroelectric β-phase for the addition of 15 wt.-% of CaCl₂ in PVDF com-pared to neat PVDF samples. The dense β-phase dominant PVDF-CaCl₂ (15 wt.-%) thick film used as a ferroelectric insulator in one-capacitor (1C) type random access memory device exhibited a remnant polarization of 3.1 μC · cm ², and is a good indication that the unoriented PVDF-CaCl₂ films can be used in electronic applications without further stretching process.

Original language	English
Pages (from-to)	1316-1321
Number of pages	6
Journal	Macromolecular rapid communications
Volume	29
Issue number	15
DOIs	https://doi.org/10.1002/marc.200800108
Publication status	Published - 2008 Aug 1

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1002/marc.200800108

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abstract = "In this Communication, the effect of varying mass fractions (0-20 wt-%) of calcium chloride (CaCl2) salt on the α- and β-phase content of poly(vinylidene fluoride) (PVDF) as-cast films were investigated. Spectral and X-ray studies revealed the maximum ferroelectric β-phase for the addition of 15 wt.-% of CaCl2 in PVDF com-pared to neat PVDF samples. The dense β-phase dominant PVDF-CaCl2 (15 wt.-%) thick film used as a ferroelectric insulator in one-capacitor (1C) type random access memory device exhibited a remnant polarization of 3.1 μC · cm 2, and is a good indication that the unoriented PVDF-CaCl2 films can be used in electronic applications without further stretching process.",

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AU - Kim, Kap Jin

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N2 - In this Communication, the effect of varying mass fractions (0-20 wt-%) of calcium chloride (CaCl2) salt on the α- and β-phase content of poly(vinylidene fluoride) (PVDF) as-cast films were investigated. Spectral and X-ray studies revealed the maximum ferroelectric β-phase for the addition of 15 wt.-% of CaCl2 in PVDF com-pared to neat PVDF samples. The dense β-phase dominant PVDF-CaCl2 (15 wt.-%) thick film used as a ferroelectric insulator in one-capacitor (1C) type random access memory device exhibited a remnant polarization of 3.1 μC · cm 2, and is a good indication that the unoriented PVDF-CaCl2 films can be used in electronic applications without further stretching process.

AB - In this Communication, the effect of varying mass fractions (0-20 wt-%) of calcium chloride (CaCl2) salt on the α- and β-phase content of poly(vinylidene fluoride) (PVDF) as-cast films were investigated. Spectral and X-ray studies revealed the maximum ferroelectric β-phase for the addition of 15 wt.-% of CaCl2 in PVDF com-pared to neat PVDF samples. The dense β-phase dominant PVDF-CaCl2 (15 wt.-%) thick film used as a ferroelectric insulator in one-capacitor (1C) type random access memory device exhibited a remnant polarization of 3.1 μC · cm 2, and is a good indication that the unoriented PVDF-CaCl2 films can be used in electronic applications without further stretching process.

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Metal salt-induced ferroelectric crystalline phase in poly(vinylidene fluoride) films

Abstract

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