{ "id": "1503.02242", "version": "v1", "published": "2015-03-08T03:25:17.000Z", "updated": "2015-03-08T03:25:17.000Z", "title": "Modulation of Schottky barrier height in graphene/MoS2/metal vertical heterostructure with large current ON-OFF ratio", "authors": [ "Yohta Sata", "Rai Moriya", "Takehiro Yamaguchi", "Yoshihisa Inoue", "Sei Morikawa", "Naoto Yabuki", "Satoru Masubuchi", "Tomoki Machida" ], "comment": "Proceeding for 2014 International Conference on Solid State Devices and Materials (SSDM2014)", "journal": "Japanese Journal of Applied Physics 54, 04DJ04 (2015)", "doi": "10.7567/JJAP.54.04DJ04", "categories": [ "cond-mat.mes-hall" ], "abstract": "Detail transport properties of graphene/MoS2/metal vertical heterostructure have been investigated. The van der Waals interface between the graphene and MoS2 exhibits Schottky barrier. The application of gate voltage to the graphene layer enables us to modulate the Schottky barrier height; thus gives rise to the control of the current flow across the interface. By analyzing the temperature dependence of the conductance, the modulation of Schottky barrier height {\\Delta}{\\phi} has been directly determined. We observed significant MoS2 layer number dependence of {\\Delta}{\\phi}. Moreover, we demonstrate that the device which shows larger {\\Delta}{\\phi} exhibits larger current modulation; this is consistent with the fact that the transport of these devices is dominated by graphene/MoS2 Schottky barrier.", "revisions": [ { "version": "v1", "updated": "2015-03-08T03:25:17.000Z" } ], "analyses": { "keywords": [ "schottky barrier height", "large current on-off ratio", "graphene/mos2/metal vertical heterostructure", "modulation", "significant mos2 layer number dependence" ], "tags": [ "conference paper", "journal article" ], "publication": { "publisher": "AIP", "journal": "J. Appl. Phys." }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }