Graphene-MoS2 Hybrid Technology for Large-Scale Two-Dimensional Electronics

Lili Yu, Han Wang, Yi-Hsien Lee, Xi Ling, Yong-Cheol Shin, Elton J. G. Santos, Efthimios Kaxiras, Jing Kong, Tomas Palacios

Research output: Contribution to conferenceAbstract

389 Citations (Scopus)

Abstract

Two-dimensional (2D) materials have generated great interest in the last few years as a new toolbox for electronics. This family of materials includes, among others, metallic graphene, semiconducting transition metal dichalcogenides (such as MoS2) and insulating Boron Nitride. These materials and their heterostructures offer excellent mechanical flexibility, optical transparency and favorable transport properties for realizing electronic, sensing and optical systems on arbitrary surfaces. In this work, we develop several etch stop layer technologies that allow the fabrication of complex 2D devices and present for the first time the large scale integration of graphene with molybdenum disulfide (MoS2) , both grown using the fully scalable CVD technique. Transistor devices and logic circuits with MoS2 channel and graphene as contacts and interconnects are constructed and show high performances. In addition, the graphene/MoS2 heterojunction contact has been systematically compared with MoS2-metal junctions experimentally and studied using density functional theory. The tunability of the graphene work function significantly improves the ohmic contact to MoS2. These high-performance large-scale devices and circuits based on 2D heterostructure pave the way for practical flexible transparent electronics in the future. The authors acknowledge financial support from the Office of Naval Research (ONR) Young Investigator Program, the ONR GATE MURI program, and the Army Research Laboratory. This research has made use of the MI.
Original languageEnglish
Publication statusPublished - 01 Mar 2014
EventAPS March Meeting 2014 - Denver, United States
Duration: 03 Mar 201407 Mar 2014
http://meetings.aps.org/Meeting/MAR14/Content/2694

Conference

ConferenceAPS March Meeting 2014
CountryUnited States
CityDenver
Period03/03/201407/03/2014
Internet address

Fingerprint Dive into the research topics of 'Graphene-MoS2 Hybrid Technology for Large-Scale Two-Dimensional Electronics'. Together they form a unique fingerprint.

  • Cite this

    Yu, L., Wang, H., Lee, Y-H., Ling, X., Shin, Y-C., Santos, E. J. G., Kaxiras, E., Kong, J., & Palacios, T. (2014). Graphene-MoS2 Hybrid Technology for Large-Scale Two-Dimensional Electronics. Abstract from APS March Meeting 2014, Denver, United States.