Results 71 to 80 of about 36,290 (265)

Terahertz Driven Reversible Topological Phase Transition of Monolayer Transition Metal Dichalcogenides

open access: yesAdvanced Science, 2021
This paper shows how terahertz light can drive ultrafast topological phase transitions in monolayer transition metal dichalcogenides (TMDs). The phase transition is induced by the light interaction with both electron and phonon subsystems in the material.
Jian Zhou   +3 more
doaj   +1 more source

Edge Delamination of Monolayer Transition Metal Dichalcogenides [PDF]

open access: yesACS Nano, 2017
18 pages, 6 ...
Thuc Hue Ly   +3 more
openaire   +3 more sources

Two‐Dimensional Materials as a Multiproperty Sensing Platform

open access: yesAdvanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana   +11 more
wiley   +1 more source

Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis

open access: yesAdvanced Functional Materials, EarlyView.
An all‐optical method is presented for quantifying the density of boron vacancy spin defects in hexagonal boron nitride (hBN). By correlating Raman and photoluminescence signals with irradiation fluence, defect‐induced Raman modes are identified and established an relationship linking optical signatures to absolute defect densities. This enables direct
Atanu Patra   +8 more
wiley   +1 more source

2D materials and van der Waals heterostructures

open access: yes, 2016
The physics of two-dimensional (2D) materials and heterostructures based on such crystals has been developing extremely fast. With new 2D materials, truly 2D physics has started to appear (e.g.
Carvalho, A.   +3 more
core   +1 more source

Wafer‐Scale Synthesis of Mithrene and its Application in UV Photodetectors

open access: yesAdvanced Functional Materials, EarlyView.
A controlled tarnishing step on the silver surface precedes the solid‐vapor‐phase chemical transformation into silver phenylselenolate thin films. The approach yields crystals exceeding 1 µm with improved in‐plane orientation. Integration on graphene phototransistors demonstrates high photoresponsivity, positioning mithrene as a promising material for ...
Maryam Mohammadi   +8 more
wiley   +1 more source

Semiconductor‐to‐metal transition in platinum dichalcogenides induced by niobium dichalcogenides

open access: yesInfoMat
Metallizing 2D semiconductors is a crucial research area with significant applications, such as reducing the contact resistance at metal/2D semiconductor interfaces.
Lei Zhang   +9 more
doaj   +1 more source

Domain‐Wall‐Free Sliding Ferroelectricity in Fully Commensurate 3R Transition Metal Dichalcogenide Bilayers

open access: yesAdvanced Functional Materials, EarlyView.
It is reported that the ferroelectric switching behavior of rhombohedral (3R) phase transition metal dichalcogenide (TMD) bilayers strongly depends on their domain structures. Single‐domain TMDs (SD‐TMDs) with domain‐wall‐free structures exhibit robust and stable polarization switching, whereas poly‐domain TMDs (PD‐TMDs) with randomly distributed ...
Ji‐Hwan Baek   +8 more
wiley   +1 more source

Doping-induced structural phase transition in cobalt diselenide enables enhanced hydrogen evolution catalysis

open access: yesNature Communications, 2018
Transition metal dichalcogenides represent an exciting class of earth-abundant hydrogen-from-water electrocatalysts, although low efficiencies limit commercialization.
Ya-Rong Zheng   +14 more
doaj   +1 more source

Stark Effect of Doped Two-Dimensional Transition Metal Dichalcogenides

open access: yes, 2017
The band gap of two-dimensional (2D) semiconductors can be efficiently tuned by gate electric field, which is so called the Stark effect. We report that doping, which is essential in realistic devices, will substantially change the Stark effect of few ...
Lu, Xiaobo, Yang, Li
core   +1 more source

Home - About - Disclaimer - Privacy