Low-Temperature Spray-Deposited Indium Oxide For Flexible Thin-Film Transistors And Integrated Circuits
APPLIED PHYSICS LETTERS(2015)
摘要
Indium oxide (In2O3) films were deposited by ultrasonic spray pyrolysis in ambient air and incorporated into bottom-gate coplanar and staggered thin-film transistors. As-fabricated devices exhibited electron-transporting characteristics with mobility values of 1 cm(2)V(-1)s(-1) and 16 cm(2)V(-1)s(-1) for coplanar and staggered architectures, respectively. Integration of In2O3 transistors enabled realization of unipolar inverters with high gain (5.3 V/V) and low-voltage operation. The low temperature deposition (<= 250 degrees C) of In2O3 also allowed transistor fabrication on free-standing 50 mu m-thick polyimide foils. The resulting flexible In2O3 transistors exhibit good characteristics and remain fully functional even when bent to tensile radii of 4 mm. (C) 2015 AIP Publishing LLC.
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关键词
indium oxide,thin-film thin-film,low-temperature,spray-deposited
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