{ "id": "0910.2747", "version": "v2", "published": "2009-10-14T22:53:47.000Z", "updated": "2010-04-05T00:29:02.000Z", "title": "Molecular Dynamics Simulation of Thermal Boundary Conductance Between Carbon Nanotubes and SiO2", "authors": [ "Zhun-Yong Ong", "Eric Pop" ], "journal": "Phys. Rev. B 81, 155408 (2010)", "doi": "10.1103/PhysRevB.81.155408", "categories": [ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ], "abstract": "We investigate thermal energy coupling between carbon nanotubes (CNTs) and SiO2 with non-equilibrium molecular dynamics simulations. The thermal boundary conductance (g) per unit CNT length is found to scale proportionally with the strength of the Van der Waals interaction (~X), with CNT diameter (~D), and as a weak power law of temperature (~T^1/3 between 200-600 K). The thermal relaxation time of a single CNT on SiO2 is independent of diameter, tau ~ 85 ps. With the standard set of parameters g ~ 0.1 W/m/K for a 1.7 nm diameter CNT at room temperature. Our results are comparable to, and explain the range of experimental values for CNT-SiO2 thermal coupling from variations in diameter, temperature, or details of the surface interaction strength.", "revisions": [ { "version": "v2", "updated": "2010-04-05T00:29:02.000Z" } ], "analyses": { "subjects": [ "61.46.Fg", "65.80.-g", "68.35.-p", "68.47.Gh" ], "keywords": [ "thermal boundary conductance", "carbon nanotubes", "van der waals interaction", "non-equilibrium molecular dynamics simulations", "surface interaction strength" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2010, "month": "Apr", "volume": 81, "number": 15, "pages": 155408 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010PhRvB..81o5408O" } } }