High field-effect mobility ZnO thin-film transistors with Mg-doped Ba0.6Sr0.4TiO3 gate insulator on plastic substrates

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The authors report on the influence of Mg acceptor doping on the markedly reduced leakage current characteristics (< 5x10(-8) A/cm(2) at 2 MV/cm) of Ba0.6Sr0.4TiO3 thin films. The suitability of room temperature deposited Mg-doped Ba0.6Sr0.4TiO3 films as gate insulators for low-voltage ZnO thin-film transistors (TFTs) (< 6 V) was investigated. All room temperature processed ZnO-TFTs on plastic substrates exhibited a high field-effect mobility of 16.3 cm(2)/V s and a current on/off ratio of 6.4x10(4). The threshold voltage and subthreshold swing were 2.8 V and 400 mV/decade, respectively. (c) 2007 American Institute of Physics.
Publisher
AMER INST PHYSICS
Issue Date
2007-01
Language
English
Article Type
Article
Keywords

VOLTAGE ORGANIC TRANSISTORS; POLYMER SUBSTRATE

Citation

APPLIED PHYSICS LETTERS, v.90, no.4, pp.1013 - 1017

ISSN
0003-6951
DOI
10.1063/1.2434150
URI
http://hdl.handle.net/10203/92493
Appears in Collection
MS-Journal Papers(저널논문)
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