High-mobility ZrInO thin-film transistor prepared by an all-DC-sputtering method at room temperature

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Abstract

Thin-film transistors (TFTs) with zirconium-doped indium oxide (ZrInO) semiconductor were successfully fabricated by an all-DC-sputtering method at room temperature. The ZrInO TFT without any intentionally annealing steps exhibited a high saturation mobility of 25.1 cm 2 V -1 s -1. The threshold voltage shift was only 0.35 V for the ZrInO TFT under positive gate bias stress for 1 hour. Detailed studies showed that the roomerature ZrInO thin film was in the amorphous state with low carrier density because of the strong bonding strength of Zr-O. The roomerature process is attractive for its compatibility with almost all kinds of the flexible substrates, and the DC sputtering process is good for the production efficiency improvement and the fabrication cost reduction.

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Xiao, P., Dong, T., Lan, L., Lin, Z., Song, W., Luo, D., … Peng, J. (2016). High-mobility ZrInO thin-film transistor prepared by an all-DC-sputtering method at room temperature. Scientific Reports, 6. https://doi.org/10.1038/srep25000

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