Enhancement of Electroactive β-phase and Superior Dielectric Properties in Cerium Based Poly(vinylidene fluoride) Composite Films. (2018)

• Record Type: Journal Article
• Authors: Garain, Samiran; Sen, Shrabanee; Henkel, Karsten; Schmeißer, Dieter; Mandal, Dipankar
• Is Part Of: Materials today. Volume 5:Number 4(2018)Part 3
• Page Start: 10084
• Page End: 10090
• Publication Date: 2018
• Subjects: PVDF -- High amount of electroactive phase -- Superior dielectric properties; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2017.11.003
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: In this work we report on the preparation of poly(vinylidene fluoride) (PVDF) films with various mass fractions (wt%) of hydrated rare earth metal salt [(NH4 )4 Ce(SO4 )4 .2H2 O] (CAS) and its electroactive phase (β- and γ-phase) formation. It was found that CAS can yield high amount of electroactive phases in PVDF. Compared to the neat PVDF film, a significantly increment of dielectric constant (ε ∼ 41) and a low loss factor (tan δ ∼ 0.8) were observed in the PVDF-CAS composite films. Thus the PVDF-CAS composite films with high electroactive phase and superior dielectric properties may meet the requirements of next generation electronic components.