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Nanofluids are known to have significantly different thermal properties relative to the corresponding conventional fluids. Heat transfer at the solid-fluid interface affects the thermal properties of nanofluids. The current work helps in…

Applied Physics · Physics 2020-10-14 Zeeshan Ahmed , Atul Bhargav

In this work we focus on the surface roughness correction to the near-field radiative heat transfer between a nanoparticle and a material with a rough surface utilizing a direct perturbation theory up to second order in the surface profile.…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 Svend-Age Biehs , Jean-Jacques Greffet

In this contribution, we study situations in which nanoparticles in a fluid are strongly heated, generating high heat fluxes. This situation is relevant to experiments in which a fluid is locally heated using selective absorption of…

Materials Science · Physics 2009-11-16 Samy Merabia , Serguei Shenogin , Laurent Joly , Pawel Keblinski , J. -L. Barrat

We apply a phenomenological theory of polar liquids to calculate the interaction energy between two plane surfaces at nm-distances. We show that depending on the properties of the surface-liquid interfaces, the interacting surfaces induce…

Soft Condensed Matter · Physics 2013-04-24 P. O. Fedichev , L. I. Menshikov

Polymer solutions subject to pressure driven flow and in nanoscale slit pores are systematically investigated using the dissipative particle dynamics approach. We investigated the effect of molecular weight, polymer concentration and flow…

Soft Condensed Matter · Physics 2015-06-25 J. A. Millan , W. Jiang , M. Laradji , Y. Wang

Contact electrification, or contact charging, refers to the process of static charge accumulation after rubbing, or even simple touching, of two materials. Despite its relevance in static electricity, various natural phenomena, and numerous…

Soft Condensed Matter · Physics 2023-12-20 Hang Zhang , Sankaran Sundaresan , Michael A. Webb

In this paper we present theoretical analysis of the electron transport in conducting polymers. We concentrate on the study of the effects of temperature on characteristics of the transport. We treat a conducting polymers in a metal state…

Materials Science · Physics 2008-10-23 Natalya A. Zimbovskaya

Large scale molecular dynamics simulations are used to study the dispersion of nanoparticles (NPs) in a polymer film during solvent evaporation. As the solvent evaporates, a dense polymer-rich skin layer forms at the liquid/vapor interface,…

Soft Condensed Matter · Physics 2016-05-23 Shengfeng Cheng , Gary S. Grest

Molecular dynamics simulation is utilized to investigate the ionic transport of NaCl in solution through a graphene nanopore under an applied electric field. Results show the formation of concentration polarization layers in the vicinity of…

Biological Physics · Physics 2013-01-10 Guohui Hu , Mao Mao , Sandip Ghosal

Heat transfer between graphene and water is pivotal for various applications, including solarthermal vapor generation and the advanced manufacturing of graphene-based hierarchical structures in solution. In this study, we employ a…

Materials Science · Physics 2024-09-02 Haoran Cui , Iyyappa Rajan Panneerselvam , Pranay Chakraborty , Qiong Nian , Yiliang Liao , Yan Wang

Molecular dynamics simulations of thiolate-protected and solvated gold nanoparticles were carried out in the presence of a non-equilibrium heat flux between the solvent and the core of the particle. The interfacial thermal conductance ($G$)…

Chemical Physics · Physics 2016-01-14 Kelsey M. Stocker , Suzanne M. Neidhart , J. Daniel Gezelter

We investigate the near-field heat transfer between a semi-infinite medium and a nanoparticle made of composite materials. We show that, in the effective medium approximation, the heat transfer can be greatly enhanced by considering…

Mesoscale and Nanoscale Physics · Physics 2015-05-12 W. J. M. Kort-Kamp , P. I. Caneda , F. S. S. Rosa , F. A. Pinheiro

Vapour-deposited organic glasses are currently in use in many optoelectronic devices. Their operation temperature is limited by the glass transition temperature of the organic layers and thermal management strategies become increasingly…

The coherent oscillations of mobile charge carriers near the surface of good conductors-surface plasmons-are been exploited in many applications in information technologies, clean energy, high-density data storage, photovoltaics, chemistry,…

Mesoscale and Nanoscale Physics · Physics 2023-12-20 Jacob Khurgin , Anton Yu. Bykov , Anatoly V. Zayats

Although ubiquitous in nature and industrial processes, transport processes at the interface during evaporation and condensation are still poorly understood. Experiments have shown temperature discontinuities at the interface during…

Soft Condensed Matter · Physics 2023-08-01 Gang Chen

Polydispersity is found to have a significant effect on the potential energy landscape; the the average inherent structure energy with temperature decreases with polydispersity. Increasing polydispersity at fixed volume fraction decreases…

Soft Condensed Matter · Physics 2009-11-13 Sneha Elizabeth Abraham , Sarika Maitra Bhattacharrya , Biman Bagchi

We report a decreased surface wettability when polymer films on a glass substrate are treated by ultra-fast laser pulses in a back-illumination geometry. We propose that back-illumination through the substrate confines chemical changes…

Bonding between polymeric interfaces is encountered widely in several industrial applications. Many of these bonding processes rely on time-consuming and temperature-dependent classical mechanism of polymer interdiffusion via reptation in a…

Soft Condensed Matter · Physics 2022-05-10 Nikhil Padhye , Ajay Vallabh

Understandings heat transfer across a solid/liquid interface is important to develop new pathways to improve thermal management in various energy applications. One of the important questions that arises in this context is the impact of…

Despite the desirability of polymers for use in many products due to their flexibility, light weight, and durability, their status as thermal insulators has precluded their use in applications where thermal conductors are required. However,…

Computational Physics · Physics 2023-10-26 Ethan Abraham , Mohammadhasan Dinpajooh , Clàudia Climent , Abraham Nitzan