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Plasma Knowledge-Based Polymorphic Engineering for Two-Dimensional Semiconductor Contacts

delete2026-02-11
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PRE
AI
J
Ji Won Heo
G
Gwang-Seok Chae
G
G. Seo
D
Dong Hyun Seo
G
Gi Dan Shim
H
Han-Woong Choi
J
Jin-Hoo Seong
J
J.H. Lee
H
Hagyoul Bae
S
Sungjune Park
H
Hyo‐Chang Lee *
T
Tae-Wan Kim *
DOI:10.1021/acsnano.5c17260delete
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摘要

摘要

En 中文
二维过渡金属二硫族化合物(TMDs)被广泛视为扩展CMOS技术的领先通道材料,但其向实际应用的进展受到缺乏可扩展、与代工厂兼容的低电阻欧姆接触制备方法的根本制约。本文演示了一种CMOS兼容的等离子体离子辐照驱动的相变,通过在MoTe2和WS2的半导体2H相内选择性诱导金属1T′相来创建多晶结构。通过采用定量等离子体参数计量学,我们识别了三种离子-固体相互作用区域,并确定了诱导相变同时避免刻蚀或晶格退化的阈值离子能量通量。在此区域内形成的多晶边缘接触显著降低了接触电阻,在导通态栅偏压下低至122 Ω·μm。精确调控等离子体动能通量可调节相变深度,便于制备具有增强导通电流(最高68.15 μA/μm)、开关比超过107、创纪录高迁移率1.61 × 104 cm2/V·s以及优异电流饱和和稳定性的边缘接触MoTe2器件。该工作建立了一种适用于二维材料的等离子体辅助相工程通用框架,并为将多晶TMD接触集成到下一代智能CMOS提供了实际可行的制造途径。
Keyword:
Contact resistance
Fluxes
Ions
Phase transitions
Plasma
polymorphic engineering
plasma phase transition
plasma ion flux
2D TMDs FET
Ohmic contact

期刊

ACS Nano 封面图
ACS Nano
IF:
16
论文数:
2.6W
被引数:
25.6W

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U
university of seoul
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594
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K
korea aerospace university
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82
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J
jeonbuk national university
学者数:
2.1K
论文数: 909
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S
sungkyunkwan university
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4.3K
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