title: A high-performance complementary inverter based on transition metal dichalcogenide field-effect transistors.
abstract: For several years, graphene has been the focus of much attention due to its peculiar characteristics, and it is now considered to be a representative 2-dimensional (2D) material. Even though many research groups have studied on the graphene, its intrinsic nature of a zero band-gap, limits its use in practical applications, particularly in logic circuits. Recently, transition metal dichalcogenides (TMDs), which are another type of 2D material, have drawn attention due to the advantage of having a sizable band-gap and a high mobility. Here, we report on the design of a complementary inverter, one of the most basic logic elements, which is based on a MoS2 n-type transistor and a WSe2 p-type transistor. The advantages provided by the complementary metal-oxide-semiconductor (CMOS) configuration and the high-performance TMD channels allow us to fabricate a TMD complementary inverter that has a high-gain of 13.7. This work demonstrates the operation of the MoS2 n-FET and WSe2 p-FET on the same substrate, and the electrical performance of the CMOS inverter, which is based on a different driving current, is also measured.
authors: School of Integrated Technology, Yonsei University, 85 Songdoguahak-ro, Incheon, 406-840 Korea ; Yonsei Institute of Convergence Technology, 85 Songdoguahak-ro, Incheon, 406-840 Korea.
authors: Ah-Jin
authors: AJ
authors: Cho
authors: Department of Electronic Engineering, Konkuk University, 120 Neungdong-ro, Seoul, 143-701 Korea.
authors: Kee Chan
authors: KC
authors: Park
authors: School of Integrated Technology, Yonsei University, 85 Songdoguahak-ro, Incheon, 406-840 Korea ; Yonsei Institute of Convergence Technology, 85 Songdoguahak-ro, Incheon, 406-840 Korea.
authors: Jang-Yeon
authors: JY
authors: Kwon
keywords: 2-Dimensional material; CMOS inverter; Transition metal dichalcogenide (TMD)