title: A Low Temperature, Solution-Processed Poly(4-vinylphenol), YO(x) Nanoparticle Composite/Polysilazane Bi-Layer Gate Insulator for ZnO Thin Film Transistor.
abstract: Low temperature, solution-processed metal oxide thin film transistors (MEOTFTs) have been widely investigated for application in low-cost, transparent, and flexible electronics. To enlarge the application area, solution-processed gate insulators (GI) have been investigated in recent years. We investigated the effects of the organic/inorganic bi-layer GI to ZnO thin film transistors (TFTs). PVP, YO(x) nanoparticle composite, and polysilazane bi-layer showed low leakage current (-10(-8) A/cm2 in 2 MV), which are applicable in low temperature processed MEOTFTs. Polysilazane was used as an interlayer between ZnO and PVP, YO(x) nanoparticle composite as a good charge transport interface with ZnO. By applying the PVP, YO(x), nanoparticle composite/polysilazane bi-layer structure to ZnO TFTs, we successfully suppressed the off current (I(off)) to -10(-11) and fabricated good MEOTFTs in 180 degrees C.
authors.forename: Hyeonwoo
authors.initials: H
authors.lastname: Shin
authors.forename: Chan-Mo
authors.initials: CM
authors.lastname: Kang
authors.forename: Hyunsik
authors.initials: H
authors.lastname: Chae
authors.forename: Hyun-Gwan
authors.initials: HG
authors.lastname: Kim
authors.forename: Kyu-Ha
authors.initials: KH
authors.lastname: Baek
authors.forename: Hyoung Jin
authors.initials: HJ
authors.lastname: Choi
authors.forename: Man-Young
authors.initials: MY
authors.lastname: Park
authors.forename: Lee-Mi
authors.initials: LM
authors.lastname: Do
authors.forename: Changhee
authors.initials: C
authors.lastname: Lee
mesh_terms: D001729:Bismuth / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles; D012821:Silanes / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature; D013818:Thermogravimetry; D015019:Yttrium / Q000737:chemistry*; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D012821:Silanes; D015019:Yttrium; D015034:Zinc Oxide; D001729:Bismuth; C091417:yttria