CMOS芯片
极性(国际关系)
接口(物质)
光电子学
材料科学
电气工程
工程物理
工程类
电子工程
化学
生物化学
毛细管数
毛细管作用
复合材料
细胞
作者
Aolin Wang,Hao Huang,Shiwei Sun,Yanlin He,Zhenyu Yang,Junheng Pan,Zian Li,Daocheng Pan,B. S. Zou,Lei Liao
出处
期刊:ACS applied nano materials
[American Chemical Society]
日期:2024-02-26
标识
DOI:10.1021/acsanm.4c00061
摘要
Controlled polarity regulation is one of the key obstacles to the practical application of two-dimensional semiconductor field-effect transistors (FETs). Herein, n- and p-channel WSe2-based FETs were fabricated through interface engineering. The n- and p-channel WSe2 FETs were obtained via metal-oxide and CuInS2 passivation, respectively. The performance of WSe2 FETs did not degenerate during the doping process owing to the concept of damage-free integration. Hence, the field-effect mobility could exceed 20 and 64 cm2 V–1 s–1 in n- and p-channel devices, respectively. Moreover, the polarity of WSe2 FETs was continuously regulated through fine control of the thickness of the oxide layer and Cu content. Thus, n- and p-type WSe2 FETs with excellent output matching were demonstrated, and complementary metal-oxide semiconductor inverters were fabricated. The complementary metal-oxide semiconductor inverter showed an ultrahigh voltage gain beyond 175 and a total noise margin of ∼85%, indicating an ultrahigh logic state transition speed and excellent anti-interference ability. Our results provided a damage-free and continuous method to adjust the polarity of WSe2 FETs and support its practical application in next-generation integrated circuits.
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