Metal Salt‐Induced Ferroelectric Crystalline Phase in Poly(vinylidene fluoride) Films | Zendy

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

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Metal Salt‐Induced Ferroelectric Crystalline Phase in Poly(vinylidene fluoride) Films

Author(s) -

Yoon Sun,

Prabu Arun Anand,

Kim Kap Jin,

Park Cheolmin

Publication year - 2008

Publication title -

macromolecular rapid communications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 154

eISSN - 1521-3927

pISSN - 1022-1336

DOI - 10.1002/marc.200800108

Subject(s) - ferroelectricity , fluoride , materials science , polarization (electrochemistry) , salt (chemistry) , phase (matter) , metal , chloride , mass fraction , analytical chemistry (journal) , chemical engineering , composite material , inorganic chemistry , dielectric , chemistry , optoelectronics , organic chemistry , metallurgy , engineering

In this Communication, the effect of varying mass fractions (0–20 wt.‐%) of calcium chloride (CaCl 2 ) 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 CaCl 2 in PVDF compared to neat PVDF samples. The dense β ‐phase dominant PVDF–CaCl 2 (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–CaCl 2 films can be used in electronic applications without further stretching process.

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