Charge doping induced reversible multistep structural phase transitions and electromechanical actuation in two-dimensional 1T′-MoS₂

Abstract

Charge doping could effectively modulate the charge density wave state of monolayer MoS2 with large strain output and superelasticity.

Emerging trends in van der Waals 2D TMD heterojunction bipolar transistors

“…layered materials have recently gained attention due to their exceptional electronic, optoelectronic, and semiconducting properties. [17][18][19][20][21][22][23][24][25] 2D TMD heterostructures have a weak interlayer bond, a quantum effect, and tunneling, so they have attracted a large amount of research attention. [26][27][28][29][30][31] These three characteristics set them apart from the traditional 3D bulk materials, which are causing increased interest in them.…”

Recent advances in TMD interfaces with seamless contacts

“…It is important to remember that the stacking orders or coordination geometries of atoms can be changed to change the properties of TMDs even more. [49][50][51][52][53][54][55][56][57] 1T 0 (or 1T) phase group VIB TMDs, for example, in which one chalcogen layer is offset relative to the other to produce an M-centered octahedral, have shown an excellent ability to minimize resistance in electrical devices. [58][59][60] Producing the semi-metallic 1T 0 phase (or the metallic 1T phase) simply by intercalating with alkali metals, 61,62 subjecting the material to mechanical stresses, [63][64][65] modulating the electrical field, 66,67 and so on is difficult.…”

Electromechanically Actuated MXene Nanotubes for Tunable Mass Transport

“…Recently, the discovery of two-dimensional materials (2DMs) has accelerated the development of micro- and nanoscale material-based actuators. The actuation performance of numerous 2DMs, such as graphene and its oxide, − phosphorene, transition-metal dichalcogenides, , and MXenes, − has been investigated by experiments and theoretical calculations. On the experimental side, a graphene-based electromechanical resonator exhibits actuated vibrations with fundamental resonant frequencies in the megahertz range under a direct current voltage .…”