AVS 62nd International Symposium & Exhibition
    2D Materials Focus Topic Thursday Sessions
       Session 2D-ThP

Paper 2D-ThP2
Ferroelectric Control of Monolayer MoS­2 via Direct Single-Layer Growth on LiNbO3

Thursday, October 22, 2015, 6:00 pm, Room Hall 3

Session: 2D Materials Focus Topic Poster Session
Presenter: Ariana Nguyen, UC Riverside
Authors: A. Nguyen, UC Riverside
E. Preciado, UC Riverside
V. Klee, UC Riverside
D. Sun, UC Riverside
I. Lu, UC Riverside
D. Barroso, UC Riverside
L. Bartels, UC Riverside
Correspondent: Click to Email

We present the direct chemical vapor deposition (CVD) growth of monolayer molybdenum disulfide (MoS­2 ­) onto periodically poled lithium niobate. Single-layer MoS­2 displays a preference for the ferroelectric domains polarized “up” with respect to the surface. This may offer the possibilities of templated growth of TMD films using the substrate ferroelectric polarization as a pattern. Piezoresponse force microscopy reveals that the MoS­2 film maintains the substrate polarization on the “up” domains while partially quenching it on the “down” domains. Electrical transport measurements suggest the ability to invert the single-layer CVD MoS2 majority charge carrier via gating­ depending on the domain orientation of the periodically poled lithium niobate substrate.