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http://dx.doi.org/10.5757/JKVS.2008.17.5.448

A Study on the Piezoelectric Sensor Response Characteristic of PVDF Organic Thin Film by Vapor Deposition Method  

Park, Soo-Hong (UNIX)
Publication Information
Journal of the Korean Vacuum Society / v.17, no.5, 2008 , pp. 448-454 More about this Journal
Abstract
The purpose of this paper is to discuss the fabrication of $\beta$-PVDF($\beta$-Polyvinylidene fluoride, ${\beta}-PVF_2$) organic thin films through the vapor deposition method and to investigate the piezoelectric properties of the organic thin films produced. Vapor deposition was performed under the following conditions : the temperature of evaporator, the applied electric field and the pressure of reaction chamber were $270^{\circ}C$, 142.4 kV/cm and $2.0{\times}10^{-5}Torr$, respectively. The results showed that the amount of $\beta$-form PVDF increased from 72 % to 95.5 % with an increase in the substrate temperature. In the case of a sensor response characteristic by varying the force moment from $1.372{\times}10^{-5}N{\cdot}m$ to $39.2{\times}10^{-5}N{\cdot}m$, the output voltage increased from 1.39V to 7.04V.
Keywords
$\beta$-PVDF; Organic thin films; Force moment; Output voltage; Piezoelectric properties;
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