Feb 15, 2023 · Here, we investigate 3R-stacked transition-metal dichalcogenides as a possible option for high-performance atomically thin field-effect transistors (FETs). We report that the effective mobility of 3R bilayer WS 2 (WSe 2) is 65% (50%) higher than that of 2H WS 2 (WSe 2).

Transition-metal dichalcogenide (TMD or TMDC) monolayers are atomically thin semiconductors of the type MX 2, with M a transition-metal atom (Mo, W, etc.) and X a chalcogen atom (S, Se, or Te). One layer of M atoms is sandwiched between two layers of X atoms.

Aug 28, 2024 · Here we optically visualize the archetypical phase transition from the 2H to the 1T phase in mono- and bilayer 2D TMDs and discover that this reaction can be accelerated by up to six orders of...

Jan 8, 2022 · In this mini review, the recent key research progresses of 2D Janus TMDs, including the fundamental properties and potential applications, are briefly summarized, and the existing challenges are also presented. Structural symmetry breaking provides a remarkable platform for inducing a wealth of fascinating properties in 2D materials.

Metastable 1T (1T′) phases require higher formation energy, as compared to the thermodynamically stable 2H phase, thus in standard chemical vapour deposition and vapour transport processes the materials normally grow in the 2H phases.

May 25, 2020 · For twisted 2H bilayers, stable 2H domains dominate, with nuclei of a second metastable phase. This appears as a kagome-like pattern at θ ≈ 2°, transitioning at θ → 0 to a hexagonal array of...

Jun 13, 2017 · Two-dimensional transition metal dichalcogenides (TMDCs) are an emerging class of materials with properties that make them highly attractive for fundamental studies of novel physical phenomena...

17 MoS 2 is naturally found in the 2H (hexagonal) phase, showing semiconducting properties, whereas chemical lithium intercalation or high temperature annealing process induces phase ...

Apr 1, 2017 · Recent advances in atomically thin two-dimensional transition metal dichalcogenides (2D TMDs) have led to a variety of promising technologies for nanoelectronics, photonics, sensing, energy storage, and opto-electronics, to name a few.

Aug 1, 2017 · Two-dimensional (2D) transition metal dichalcogenides (TMDs) have attracted intense interests owing to their fascinating physical properties and potential applications. In addition, the properties of few-layer TMD materials can be tuned by their thickness as well as the stacking sequence.