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.
All Science Journal Classification (ASJC) codes
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry