Inorganic oxide core, polymer shell nanocomposite as a high K gate dielectric for flexible electronics applications.
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.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.
Maliakal
Ashok
A
Department of Materials Research, Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey 07974, USA. maliakal@lucent.com
Katz
Howard
H
Cotts
Pat M
PM
Subramoney
Shekhar
S
Mirau
Peter
P
D004581:Electronics; D008567:Membranes, Artificial; D015394:Molecular Structure; D049329:Nanostructures / Q000737:chemistry*; D010316:Particle Size; D011137:Polystyrenes / Q000138:chemical synthesis / Q000737:chemistry*; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
D008567:Membranes, Artificial; D011137:Polystyrenes; C009495:titanium dioxide; D014025:Titanium