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
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...
Stretching ReS2along different crystal directions: Anisotropic tuning of the vibrational and optical responses. Appl. Phys. Lett. 120, 063101 (2022). 9. Li, H. et al. Strongly Anisotropic Strain‐Tunability of Excitons in Exfoliated ZrSe 3. Adv. Mater. 34, 2103571 (2022). 10. Androu...
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
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, ...
Tuning electronic properties of materials lies at the heart of modern electronics. Strain engineering, as an efficient strategy to tune the electronic properties of materials and explore new quantum states in condensed matter physics, gives rise to an emerging research field referred as “straintronics...
tuning in electronic band structures. This in turn modulates the optical properties and excitonic behaviors of 2D TMDCs [16,17]. For example, a direct-to-indirect bandgap transition has been detected in monolayer MoS2under tensile strain in uniaxial or biaxial directions [18,19]. Out-of-plane ...
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 ...