force: van der Waals
All Van der Waals Josephson Junctions
... limited. Van der Waals (vdW) materials and their heterostructures are known for their extraordinary crystalline quality, versatile electronic properties, and flexible assembly that can be achieved ...
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Van der Waals interaction between a moving nano-cylinder and a liquid thin film
... We study the static and dynamic interaction between a horizontal cylindrical nano-probe and a thin liquid film. The effects of the physical and geometrical parameters, with a special focus on the film thickness, the probe ...
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Electrolytic phototransistor based on graphene-MoS 2 van der Waals p-n heterojunction with tunable photoresponse
... bilayer graphene hybrid interfaces. We demonstrate the control of the photoconduction properties using electrolytic gating which ensures a low bias operation. We show that by finely choosing the doping value of each ...
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Electronic band structure of Two-Dimensional WS 2 /Graphene van der Waals Heterostructures
... materials, van der Waals (vdW) heterostructures have recently emerged as a novel class of materials, in which different 2D atomic planes are vertically stacked to give rise to distinctive properties ...
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Bandgap inhomogeneity of MoS$_2$ monolayer on epitaxial graphene bilayer in van der Waals p-n junction
... Ever since the technique to isolate stable single-layer graphene was reported, the study of two-dimensional (2D) materials has gained a lot of research interest. Hence, a broad family of 2D ma- terials like graphene, ...
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Atomically Sharp Interface in an h-BN-epitaxial graphene van der Waals Heterostructure
... Here, we study the interface properties of h-BN on epitaxial graphene on 4H-SiC(0001). We demon- strate that the h-BN flakes can be deposited on the graphene in various sizes. Due to the inertness of both surfaces, ...
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Excitons in van der Waals materials: From monolayer to bulk hexagonal boron nitride
... V. SUMMARY From the solution of the ab initio Bethe-Salpeter equation (BSE) as a function of momentum q, we have obtained the eigenvalue spectrum of the excitonic Hamiltonian for the electronic excitations of hexagonal ...
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Explaining the microtubule energy balance : contributions due to dipole moments, charges, van der Waals and solvation energy
... Received: 14 August 2017; Accepted: 13 September 2017; Published: 22 September 2017 Abstract: Microtubules are the main components of mitotic spindles, and are the pillars of the cellular cytoskeleton. They perform most ...
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Van der Waals epitaxy of two-dimensional single-layer h-BN on graphite by molecular beam epitaxy: Electronic properties and band structure
... In summary, we have studied the electronic properties and the band structure of single layer h-BN grown on graph- ite using MBE. We find that this heterostructure gives rise to sharp bands, in particular for the h-BN ...
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Band gap modulation of bilayer graphene by single and dual molecular doping: A van der Waals density-functional study
... Band gap modulation of bilayer graphene by single and dual molecular doping: A van der Waals density-functional study Tao Hu a , b , Iann C. Gerber a , ∗ a Université de Toulouse; INSA, UPS, CNRS; ...
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Photomodulation of Charge Transport in All‐Semiconducting 2D–1D van der Waals Heterostructures with Suppressed Persistent Photoconductivity Effect
... Abstract Van der Waals heterostructures (VDWHs), obtained via the controlled assembly of two- dimensional atomically thin crystals, exhibit unique physico-chemical properties, rendering them ...
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Femtosecond Photodissociation Dynamics of van der Waals Cationic Clusters: a tool for detecting metastable isomers of organic cations
... 1 Introduction Carbocations are strongly electrophile compounds that play an important role as reactive intermediates in organic chemistry [1]. The most important reactive site is the charge centre and documenting the ...
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Functional hybrid multilayered van der Waals heterostructures from graphene and self- assembled supramolecular 2D crystals
... VdW heterostructures can also be built by assembling through vdW interactions organic materials onto 2D layered materials used here as substrates, leading to organic/2D vdW heterostructures [5,6]. The integration of the ...
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A Universal Approach toward Light-Responsive Two-Dimensional Electronics: Chemically Tailored Hybrid van der Waals Heterostructures
... The physical superposition of dissimilar two-dimensional materials (2DMs), which are free of dangling-bond on their surfaces, offers numerous solutions towards the development of van der Waals ...
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Optical spectroscopy of excited exciton states in MoS 2 monolayers in van der Waals heterostructures
... were found from the calculations presented in Fig. 3 . Note that small deviations of the layer thicknesses from the values found in AFM studies (green, blue, and magenta curves) result in completely different amplitudes ...
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Analytical and numerical computations of the van der Waals force in complex geometries: Application to the filtration of colloidal particles
... the van der Waals interaction ...the van der Waals interaction energy based on Hamaker’s additivity hypothesis are derived for a sphere in interaction with a square wedge, a ...
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Differentiability of the van der Waals interaction between two atoms
... [CaSc] E. Canc`es, L.R. Scott: Van der Waals Interactions Between Two Hydrogen ´ Atoms: The Slater–Kirkwood Method Revisited. SIAM J. Math. Anal., 50(1), 381–410 (2018). [ChChJoRiYu] S.J. Cha, Y.G. ...
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Clean 2D superconductivity in a bulk van der Waals superlattice
... As shown in Fig. 1A for the case of 2H-TaS 2 , intercalation of organic molecules (15) ((Py) 0.5 - TaS 2 ) and incommensurate spacer layers (16) ((PbS) 1.13 TaS 2 ) has been employed to drive these materials towards the ...
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Catalytically mediated epitaxy of 3D semiconductors on van der Waals substrates
... show that alignment can be improved using solid catalytic nanocrys- tals (Au) that are themselves crystallographically aligned with the sub- strate. Epitaxy is thereby “transferred” from the van der ...
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Molecular adsorption on metal surfaces with van der Waals density functionals
... The adsorption of 1,4-benzenediamine (BDA) on Au(111) and azobenzene on Ag(111) is investigated using density functional theory (DFT) with the nonlocal van der Waals density functional (vdW-DF) and ...
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