Lateral Heterostructures of Monolayer Transition Metal Dichalcogenides: a First-principles Study

ORAL

Abstract

Using first-principles calculations, we investigate the electronic structure and optical properties of lateral heterostructures consisting of different monolayer transition metal dichalcogenides (TMDs). We find that the spin-orbital coupling effect plays an important role in modifying the ground-state electronic structure and excited-state properties such as optical responses. The anisotropy of optical absorption is investigated including local-field effects.

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Authors

  • Meng Wu

    Physics Department, UC Berkeley and Lawrence Berkeley National Lab

  • Ting Cao

    Physics Department, UC Berkeley and Lawrence Berkeley National Lab, University of California at Berkeley and Lawrence Berkeley National Laboratory, University of California, Berkeley

  • Steven G. Louie

    University of California at Berkeley and Lawrence Berkeley National Lab, Physics Department, UC Berkeley and Lawrence Berkeley National Lab, University of California at Berkeley, University of California, Berkeley, University of California at Berkeley and Lawrence Berkeley National Laboratory, UC Berkeley and LBNL, UCB Physics and LBNL MSD