Probing symmetry properties of few-layer MoS2 and h-BN by optical second-harmonic generation. Nano Lett. 13, 3329–3333 (2013). Article CAS Google Scholar Rivera, P. et al. Observation of long-lived interlayer excitons in monolayer MoSe2–WSe2 heterostructures. Nat. Commun. 6, 6242 (2015...
Here we experimentally investigate nanoscale positioning and polarization properties of individual SPEs created in monolayer WSe2 via nanoindentation. The SPEs exhibit excellent single-photon purity with second order correlation function values down to g(2)(0) ~ 0.02 and high emission rates of >...
binding model (TBM) that incorporates strain effect to characterize the band structure tuning of TMDC (MoS2, MoSe2, WS2, and WSe2) monolayers under biaxial strain fields; strain-dependent Slater-Koster parameters are employed to describe electron hopping and orbital overlap in the strained ...
such as high elasticity modulus (180 ± 60 N m−1for monolayer MoS2) and Young’s modulus (270 ± 100 GPa for monolayer MoS2) and can sustain over 10% strain [37]. The good mechanical properties of 2D semiconductors
Large Biaxial Compressive Strain Tuning of Neutral and Charged Excitons in Single-Layer Transition Metal Dichalcogenides It is well known that monolayer transition-metal dichalcogenides (MX _2 , M = Mo, W and X = S, Se, Te) could exist in three common structures, i.e. 1 T , $... E ...
1School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China 2Department of Chemistry, Faculty of Science, Al-Azhar University, 71524, Assiut, Egypt 3Department of Petrochemical, Egyptian Petroleum Research Institute (EPRI), Nasr City, 11727, Cairo, Egypt 4Center for ...
A facile and efficient strategy of studying the effect of compressive strain on the excitons of two-dimensional (2D) materials is introduced based on a homebuilt four-point bending apparatus, further an adamantane encapsulation technology is verified to efficiently-enhance this strain-induced excitonic...
In particular, uniaxial in-plane strain has been proved to be an effective tool to explore the superconducting pairing symmetry33, which could be utilized in vdW super- conductors such as twisted bilayer graphene34, twisted double bilayer graphene35, monolayer NbSe236, doped monolayer WTe237, ...
MoS2monolayer.eSHG line scan across an MoS2edge. Symbols: experimental data. Line: fit of a function of the form\(1 - {\mathrm{erf}}\left( {\sqrt 2 x{\mathrm{/}}w} \right)\), where erf() is the error function andwis the waist, from which a spatial resolution of 280 nm (...
orange dashed curves are the bands for a monolayer BP. The change of subband splittings causes the shift rate ofE22smaller than that ofE11. Layered materials governed by van der Waals (vdW) interactions offer opportunities for interlayer tuning of the materials’ properties. Here, the authors ...