Bulletin of the American Physical Society
APS March Meeting 2018
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session P36: Synthesis and Properties of 2D Materials Beyond Graphene and TMD
2:30 PM–5:30 PM,
Wednesday, March 7, 2018
LACC Room: 410
Sponsoring Unit: DMP
Chair: Lain-Jong Li, KAUST
Abstract: P36.00012 : Ambipolar Transport Based on CVD-synthesized ReSe2
4:42 PM–4:54 PM
Rhenium diselenide (ReSe2) is a member of 2D semiconducting materials with in-plane anisotropic electrical and optical properties. We report the electrical behaviors of ReSe2 synthesized via a chemical vapor deposition (CVD) method. Differently from previous reports on unipolar ReSe2 FETs, the synthesized-ReSe2 FETs have ambipolar characteristics when it contacts with gold electrode. This device shows high on/off current ratios over 104 for both of hole and electron. Moreover, there was little dependence of the behavior on the thickness. However, depending on the electrode metal, the main charge carrier type was changed. We measured the work function for synthesized ReSe2 in order to investigate the ambipolar characteristic using Kelvin probe force microscopy (KPFM). We also designed an inverter to study the feasibility of its application in logic circuits. Additionally, the atomic structure of the synthesized ReSe2, which has triclinic crystal system, was confirmed by transmission electron microscope (TEM), and the corresponding vibration modes were checked by Raman spectroscopy.
The American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics.
1 Physics Ellipse, College Park, MD 20740-3844
Editorial Office 1 Research Road, Ridge, NY 11961-2701 (631) 591-4000
Office of Public Affairs 529 14th St NW, Suite 1050, Washington, D.C. 20045-2001 (202) 662-8700