Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1608275 | Journal of Alloys and Compounds | 2015 | 6 Pages |
Abstract
We report the synthesis of TiO2 nanoparticles prepared by the hydrolysis of titanium isopropoxide (TTIP) in the presence of a DNA complex for solution processable dielectric composites. The nanoparticles were incorporated as fillers in polycarbonate at low concentrations (1.5, 5 and 7 wt%) to produce hybrid dielectric films with dielectric constant higher than thermally grown silicon oxide. It was found that the DNA complex plays an important role as capping agent in the formation and suspension stability of nanocrystalline anatase phase TiO2 at room temperature with uniform size (â¼6 nm) and narrow distribution. The effective dielectric constant of spin-cast polycarbonate thin-films increased from 2.84 to 13.43 with the incorporation of TiO2 nanoparticles into the polymer host. These composites can be solution processed with a maximum temperature of 90 °C and could be potential candidates for its application in low-cost macro-electronics.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
J.C. Ramos, I. Mejia, J. Murphy, M. Quevedo, P. Garcia, C.A. Martinez,