نتایج جستجو برای: transition metal dichalcogenides
تعداد نتایج: 436925 فیلتر نتایج به سال:
We study the superconducting pairing instabilities and gap functions for prototypical two-dimensional (2D) transition-metal dichalcogenides (TMDCs) WS$_2$, MoTe$_2$, MoS$_2$ in 2H phase under both hole electron doping at 10 K. Our first-principles quantum many-body Green's function approach allows us to treat full $d$ $p$ manifold of orbitals with strong spin-orbit coupling, yielding prediction...
Electron–hole plasma‐induced dephasing and its influence on the excitonic absorption degenerate four‐wave mixing spectra in monolayer transition metal dichalcogenides are investigated. A systematic microscopic theory is presented that combines density functional calculations for linear material properties with a many‐body equation of motion approach optical response. Numerical results obtained ...
The development of two-dimensional (2D) materials has been experiencing a renaissance since the adventure of graphene. Layered transition metal dichalcogenides (TMDs) are now playing increasingly important roles in both fundamental studies and technological applications due to their wide range of material properties from semiconductors, metals to superconductors. However, a material with fixed ...
Transition metal dichalcogenides (TMDs) are layered semiconductors with indirect band gaps comparable to Si. These compounds can be grown in large area, while their gap(s) can be tuned by changing their chemical composition or by applying a gate voltage. The experimental evidence collected so far points toward a strong interaction with light, which contrasts with the small photovoltaic efficien...
This work reports the self-limiting synthesis of an atomically thin, two dimensional transition metal dichalcogenides (2D TMDCs) in the form of MoS2. The layer controllability and large area uniformity essential for electronic and optical device applications is achieved through atomic layer deposition in what is named self-limiting layer synthesis (SLS); a process in which the number of layers ...
Functionalities of two-dimensional (2D) crystals based on semiconducting transition metal dichalcogenides (TMDs) have now stemmed from simple field effect transistors (FETs) to a variety of electronic and opto-valleytronic devices, and even to superconductivity. Among them, superconductivity is the least studied property in TMDs due to methodological difficulty accessing it in different TMD spe...
We study the atomic contributions to the nanoscale friction in layered MX2 (M = Mo, W; X = S, Se, Te) transition metal dichalcogenides by combining ab initio techniques with group theoretical analysis. Starting from stable atomic configurations, we propose a computational method, named Normal-Modes Transition Approximation (NMTA), to individuate possible sliding paths from only the analysis of ...
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