Evidence of Improved Thermal Stability via Nanoscale Contact Engineering in IGZO Source-Gated Thin-Film Transistors
Evidence of Improved Thermal Stability via Nanoscale Contact Engineering in IGZO Source-Gated Thin-Film Transistors
复制标题
通过 IGZO 源栅薄膜晶体管的纳米级接触工程提高热稳定性的证据
DOI:
10.1109/ted.2023.3276337
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发表时间:
2023
影响因子:
3.1
通讯作者:
Alfarisyi S
中科院分区:
文献类型:
--
作者:
Alfarisyi S
Despite rapidly expanding interest in thin-film source-gated transistors (SGTs), the high-temperature dependence of drain current (TDDC) in devices comprising Schottky source barriers is delaying wide adoption. To reduce this effect, alternative source designs have been theorized. Specifically, introducing additional nanoscale layers at the source contact should facilitate the tunneling of charge carriers at the Fermi energy level with negligible TDDC. Here, we fabricate amorphous In2Ga2ZnO7tunnel-contact SGTs (TC-SGTs) with three times lower TDDC than polysilicon transistors with Schottky contacts. Numerical simulations help elucidate the control mechanisms. We show that the potential profile across the semiconductor in the bulk of the source-gate overlap region determines injection current, and the introduction of a thin interfacial layer at the contact reduces the role of the contact metal work function (WF) in current control and associated temperature effects. This device architecture adds improved thermal stability to the long list of SGT benefits, including low voltage saturation, power-efficient operation, high intrinsic gain, device-to-device uniformity, and robustness to mechanical and electrical stress.
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DOI:
10.1002/advs.202101473
发表时间:
2021-10
期刊:
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
影响因子:
--
作者:
Wang G;Zhuang X;Huang W;Yu J;Zhang H;Facchetti A;Marks TJ
通讯作者:
Marks TJ
DOI:
--
发表时间:
2013
期刊:
European Solid-State Device Research Conference
影响因子:
--
作者:
R. Sporea;A. S. Alshammari;S. Georgakopoulos;J. Underwood;M. Shkunov;S. Silva
通讯作者:
S. Silva
影响因子:
4.9
作者:
S. Choi;Seohyeon Kim;Jungkyu Jang;Jungmok Kim;D. M. Kim;Sung;H. Mo;Seung Min Lee;D. Kim
通讯作者:
D. Kim
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
R. Sporea;K. Jayawardena;M. Constantinou;M. Ritchie;Alistair Brewin;W. Wright;S. Silva
通讯作者:
S. Silva
DOI:
--
发表时间:
2011
期刊:
Device Research Conference
影响因子:
--
作者:
R. Sporea;J. Shannon;S. Silva
通讯作者:
S. Silva