Inorganic Oxide Core,Polymer Shell Nanocomposite as a High K Gate Dielectric for Flexible Electronics Applications

摘要

Organic/inorganic core shell nanoparticles have been synthesized using high K TiO_2 as the core nanoparticle,and polystyrene as the shell.This material is easy to process and forms transparent continuous thin films,which exhibit a dielectric constant enhancement of over 3 times that of bulk polystyrene.This new dielectric material has been incorporated into capacitors and thin film transistors (TFTs).Mobilities approaching 0.2 cm~2/V centre dot s have been measured for pentacene TFTs incorporating the new TiO_2 polystyrene nanostructured gate dielectric,indicating good surface properties for pentacene film growth.This novel strategy for generating high K flexible gate dielectrics will be of value in improving organic and flexible electronic device performance.