High Harmonic Generation in Monolayer and Bilayer of Transition Metal Dichalcogenide

Monolayer semiconducting transition metal dichalcogenide alloys: Stability and band bowing

and band bowing Jun Kang, Sefaattin Tongay, Jingbo Li, and Junqiao Wu State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083, China Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA Department of Materials Science and Engineering, University of California,...

Electrical generation and control of the valley carriers in a monolayer transition metal dichalcogenide.

Electrically controlling the flow of charge carriers is the foundation of modern electronics. By accessing the extra spin degree of freedom (DOF) in electronics, spintronics allows for information processes such as magnetoresistive random-access memory. Recently, atomic membranes of transition metal dichalcogenides (TMDCs) were found to support unequal and distinguishable carrier distribution i...

Plasmons in metallic monolayer and bilayer transition metal dichalcogenides

Second harmonic generation from artificially stacked transition metal dichalcogenide twisted bilayers.

Optical second harmonic generation (SHG) is known as a sensitive probe to the crystalline symmetry of few-layer transition metal dichalcogenides (TMDs). Layer-number dependent and polarization resolved SHG have been observed for the special case of Bernal stacked few-layer TMDs, but it remains largely unexplored for structures deviated from this ideal stacking order. Here we report on the SHG f...

Computational Study of Metal Contacts to Monolayer Transition-Metal Dichalcogenide Semiconductors

Among various 2D materials, monolayer transition-metal dichalcogenide (mTMD) semiconductors with intrinsic band gaps (1–2 eV) are considered promising candidates for channel materials in next-generation transistors. Low-resistance metal contacts to mTMDs are crucial because currently they limit mTMD device performances. Hence, a comprehensive understanding of the atomistic nature of metal conta...