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

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

Research output: Contribution to journalArticlepeer-review

46 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 languageEnglish
Pages (from-to)1316-1321
Number of pages6
JournalMacromolecular rapid communications
Volume29
Issue number15
DOIs
Publication statusPublished - 2008 Aug 1

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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