진공증착법에 의해 제조된 PVDF 박막의 상변화에 따른 유전특성

Dielectric Characteristic by Phase Transition of Fabricated PVDF thin film through Vapor Deposition Method

Polyvinylidene fluoride(PVDF) thin films are fabricated by vapor deposition method and their dielectric characteristics are investigated. At electric field near 4MV/m, a phase transition occur with polar ${\alpha}$ . In accordance to increasing temperature, the dielectric relaxation of PVOF thin films show from 70Hz to 104Hz. This result correspond to Debye's theory[1]. Activation energy of PVDP thin film is 21Kca1/mo1.