Surface wrinkling of two mutually attracting elastic thin films due to van der Waals forces

2001 ◽  
Vol 90 (12) ◽  
pp. 6098-6104 ◽  
Author(s):  
C. Q. Ru
Keyword(s):  
Thin Films ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Surface Wrinkling

Phonon scattering due to van der Waals forces in the lattice thermal conductivity of Bi2Te3 thin films

2015 ◽  
Vol 117 (1) ◽  
pp. 015103 ◽  
Author(s):  
Kyeong Hyun Park ◽  
Mohamed Mohamed ◽  
Zlatan Aksamija ◽  
Umberto Ravaioli
Keyword(s):  
Thin Films ◽  
Thermal Conductivity ◽  
Lattice Thermal Conductivity ◽  
Phonon Scattering ◽  
Van Der Waals ◽  
Van Der Waals Forces

Towards superlubricity in nanostructured surfaces: the role of van der Waals forces

2018 ◽  
Vol 20 (34) ◽  
pp. 21949-21959 ◽  
Author(s):  
Fernando G. Echeverrigaray ◽  
Saron R. S. de Mello ◽  
Leonardo M. Leidens ◽  
Marcelo E. H. Maia da Costa ◽  
Fernando Alvarez ◽  
...  
Keyword(s):  
Thin Films ◽  
Energy Dissipation ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Nanostructured Surfaces ◽  
Sliding Interface ◽  
Frictional Damping

Energy dissipation associated with frictional damping mechanisms owing to van der Waals (vdW) forces by induced polarizability at the sliding interface of a-C:H thin films.

Finite time rupture for thin films under van der Waals forces

Nonlinearity ◽  
2007 ◽  
Vol 20 (2) ◽  
pp. 299-317 ◽  
Author(s):  
Kai-Seng Chou ◽  
Ying-Chuen Kwong
Keyword(s):  
Thin Films ◽  
Finite Time ◽  
Van Der Waals ◽  
Van Der Waals Forces

Surface Instability of a Semi-Infinite Elastic Body Under Surface van der Waals Forces

2004 ◽  
Vol 71 (1) ◽  
pp. 138-140 ◽  
Author(s):  
C. Q. Ru
Keyword(s):  
Elastic Body ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Interaction Coefficient ◽  
Deformation Field ◽  
Van Der Waals Interaction ◽  
Linear Elastic ◽  
Surface Wrinkling ◽  
Linear Elastic Body ◽  
Infinite Linear

It is shown that the surface of a semi-infinite linear elastic body attracted by a rigid flat through van der Waals-like forces is always unstable. The wavelength of the surface wrinkling is finite and decreases with the van der Waals interaction coefficient. In particular, this result implies that the deformation field of the semi-infinite linear elastic body attracted by a rigid flat cannot be determined uniquely.

Self-Assembly of a Chiral Cubic Three-Connected Net from the High Symmetry Molecules C60 and SnI4

2020 ◽  
Author(s):  
Daniel B. Straus ◽  
Robert J. Cava
Keyword(s):  
Organic Synthesis ◽  
Self Assembly ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
High Symmetry ◽  
Molecular Chirality ◽  
Chiral Materials ◽  
Self Assembled ◽  
Chiral Centers

The design of new chiral materials usually requires stereoselective organic synthesis to create molecules with chiral centers. Less commonly, achiral molecules can self-assemble into chiral materials, despite the absence of intrinsic molecular chirality. Here, we demonstrate the assembly of high-symmetry molecules into a chiral van der Waals structure by synthesizing crystals of C<sub>60</sub>(SnI<sub>4</sub>)<sub>2</sub> from icosahedral buckminsterfullerene (C<sub>60</sub>) and tetrahedral SnI4 molecules through spontaneous self-assembly. The SnI<sub>4</sub> tetrahedra template the Sn atoms into a chiral cubic three-connected net of the SrSi<sub>2</sub> type that is held together by van der Waals forces. Our results represent the remarkable emergence of a self-assembled chiral material from two of the most highly symmetric molecules, demonstrating that almost any molecular, nanocrystalline, or engineered precursor can be considered when designing chiral assemblies.

Thermodynamic Stability of Hexagonal and Rhombohedral Bn at Cvd Conditions from Van der Waals Corrected First Principles Calculations

2019 ◽  
Author(s):  
Henrik Pedersen ◽  
Björn Alling ◽  
Hans Högberg ◽  
Annop Ektarawong
Keyword(s):  
Thin Films ◽  
Thermodynamic Stability ◽  
First Principles ◽  
Thermal Equilibrium ◽  
Density Functional ◽  
Van Der Waals ◽  
Chemical Vapor ◽  
First Principles Calculations ◽  
Functional Theory ◽  
The Stability

Thin films of boron nitride (BN), particularly the sp<sup>2</sup>-hybridized polytypes hexagonal BN (h-BN) and rhombohedral BN (r-BN) are interesting for several electronic applications given band gaps in the UV. They are typically deposited close to thermal equilibrium by chemical vapor deposition (CVD) at temperatures and pressures in the regions 1400-1800 K and 1000-10000 Pa, respectively. In this letter, we use van der Waals corrected density functional theory and thermodynamic stability calculations to determine the stability of r-BN and compare it to that of h-BN as well as to cubic BN and wurtzitic BN. We find that r-BN is the stable sp<sup>2</sup>-hybridized phase at CVD conditions, while h-BN is metastable. Thus, our calculations suggest that thin films of h-BN must be deposited far from thermal equilibrium.

scholarly journals Nanotube‐Based 1D Heterostructures Coupled by van der Waals Forces

Small ◽  
2021 ◽  
pp. 2102585
Author(s):  
Sofie Cambré ◽  
Ming Liu ◽  
Dmitry Levshov ◽  
Keigo Otsuka ◽  
Shigeo Maruyama ◽  
...  
Keyword(s):  
Van Der Waals ◽  
Van Der Waals Forces

scholarly journals Tuning adlayer-substrate interactions of graphene/h-BN heterostructures on Cu(111)–Ni and Ni(111)–Cu surface alloys

RSC Advances ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1916-1927
Author(s):  
Jianmei Huang ◽  
Qiang Wang ◽  
Pengfei Liu ◽  
Guang-hui Chen ◽  
Yanhui Yang
Keyword(s):  
Long Range ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Alloy Surface ◽  
Surface Alloys ◽  
Substrate Interactions

The evolution of the interface and interaction of h-BN and graphene/h-BN (Gr/h-BN) on Cu(111)–Ni and Ni(111)–Cu surface alloys versus the Ni/Cu atomic percentage on the alloy surface were comparatively studied by DFT-D2, including critical long-range van der Waals forces.

Concisely modularized assembling of graphene-based thin films with promising electrode performance

2019 ◽  
Vol 3 (7) ◽  
pp. 1462-1470 ◽  
Author(s):  
Weiwei Wei ◽  
Rohit L. Vekariy ◽  
Chuanting You ◽  
Yafei He ◽  
Ping Liu ◽  
...  
Keyword(s):  
Thin Films ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Double Layer ◽  
Van Der Waals ◽  
Cellulose Nanofibers ◽  
Van Der Waals Interactions ◽  
Electrode Performance ◽  
Reduced Graphene

Highly dense thin films assembled from cellulose nanofibers and reduced graphene oxide via van der Waals interactions to realize ultrahigh volumetric double-layer capacitances.

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