Dielectric Characteristics of UV-Curable CaCu3Ti4O12 Composite Thick Film Capacitors on Cu Foils

Dielectric composite thick films containing a high dielectric constant CaCu3Ti4O12 (CCTO) filler in a UV‐cured polymer matrix were investigated as flexible planar capacitors on Cu foils. Dielectric performance depended on the volume fraction and size of CCTO particles dispersed in the cured polymer...

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Bibliographic Details
Published in:International journal of applied ceramic technology 2016-07, Vol.13 (4), p.685-689
Main Authors: Choi, Hong Rak, Sekhar, Koppole, Jo, Ah Ra, Cho, Yong Soo
Format: Article
Language:English
Subjects:
CaCu3Ti4O12
composites
dielectric materials/properties
Thick Film
UV-curable
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Summary:Dielectric composite thick films containing a high dielectric constant CaCu3Ti4O12 (CCTO) filler in a UV‐cured polymer matrix were investigated as flexible planar capacitors on Cu foils. Dielectric performance depended on the volume fraction and size of CCTO particles dispersed in the cured polymer matrix. As a result, the thick films containing 33.3 vol.% CCTO with an average particle size of 0.47 μm exhibited a dielectric constant of ~80 and a dielectric loss of ~0.06 at 10 kHz. The effective medium theory model incorporating a morphology fitting parameter has been proven to be most close to the experimental values.
ISSN:1546-542X
1744-7402
DOI:10.1111/ijac.12545