The discovery of a giant dielectric constant of 4105 in calcium copper titanate (CCTO) has generated
significant interest for application in electronic devices. Over the past decade, many methods have
been developed to synthesize CCTO particles in an effort to capitalize upon the outstanding dielectric
properties. Polymer film capacitors are one application where CCTO could greatly increase the
typically low dielectric constant of the polymer. Recent work has shown that the aspect ratio of the
dispersed filler can greatly affect the dielectric constant of the polymer with high aspect ratio
nanowires (NWs) producing greater dielectric constant and energy density than spherical particles.