CNT/MoS2 Hybrid-Dimensional Heterojunction Field Effect

• 1、Dalian University of Technology,Dalian 116620

Abstract：Carbon nanotube (CNT) , as a typical 1D nanomaterial, has many unique physical characteristics. The electrons transport in the CNT is in ballistic form. Therefore, CNT is also often applied in electronic and optoelectronic devices. Two-dimensional transition metal dichalcogenides(TMD) have been widely used in electronic and optoelectronic devices in recent years because of their unique advantages compared with traditional materials, such as unique layered structure, no dangling bonds on the surface, and band gap varying with thickness. In this paper, the ballistic transport of CNT and the natural layered structure of the molybdenum disulfide will be used to fabricate the hybrid-dimensional CNT/MoS2 heterojunction field effect transistor. The device shows good electrical characteristics, with a switching ratio of 1000 and a minimum sub-threshold swing of 0.95 V/dec. Negative transconductance emerges in the transfer characteristic curve.

Keywords： Microelectronics and Solid State Electronics Field Effect Transistor Carbon nanotube Molybdenum disulfide heterojunction