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Updated: Apr 25, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
Published on: August 2, 2019
Temperature dependence of electronic behaviors in quantum dimension junctionless thin-film transistor
Ya-Chi Cheng1, Hung-Bin Chen2, Ming-Hung Han3
1Department of Engineering and System Science, National Tsing Hua University, Section 2 Kuang Fu Road, Hsinchu 30013, Taiwan.
Abstract:
The high temperature dependence of junctionless (JL) gate-all-around (GAA) poly-Si thin-film transistors (TFTs) with 2-nm-thick nanosheet channel is compared with that of JL planar TFTs. The variation of SS with temperature for JL GAA TFTs is close to the theoretical value (0.2 mV/dec/K), owing to the oxidation process to form a 2-nm-thick channel. The bandgap of 1.35 eV in JL GAA TFTs by fitting experimental data exhibits the quantum confinement effect, indicating greater suppression of Ioff than that in JL planar TFTs. The measured [Formula: see text] of -1.34 mV/°C in JL GAA nanosheet TFTs has smaller temperature dependence than that of -5.01 mV/°C in JL planar TFTs.
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