Transport properties of in-plane MoS 2 heterostructures from lateral and vertical directions

Abstract

Two-dimensional (2D)molybdenum disulfide (MoS2) promiseda widerange of potential applications. Here, we report the transport investigations on the MoS2 from Armchair (AC) and Zigzag (ZZ) directions with different kinds of leads. The conductance of 2H phase MoS2 depended on the transport directions and lead types (2H phase or 1T phase). System with 1T phase MoS2 as lead can impressively improve the transport properties compared with the 2H phase lead. Moreover, for the system with metal lead, enhanced conductance can be observed, which contrast to the experi- ment measurements. Further investigate indicated that the conductance is sensitively rely on the distance between metal lead and 2D material. The present theoretical re- sults suggested the lead material and interface details are both important for MoS2 transport exploration, which can provide vital insights into the other 2D hybrid mate- rials.