TY - GEN
T1 - Molecular dynamics simulation of the thermal resistance of carbon nanotube - Substrate interfaces
AU - Rogers, Daniel J.
AU - Qu, Jianmin
AU - Yao, Matthew
PY - 2010
Y1 - 2010
N2 - The interfacial thermal resistance (ITR) between a carbon nanotube (CNT) and adjoining carbon, silicon, or copper substrate is investigated through non-equilibrium molecular dynamics simulation (NEMD). The theoretical phonon transmission also is calculated using a simplified form of the diffuse mismatch model (DMM) with direct simulation of the phonon density of states (DOS) under quasi-harmonic approximation. The results of theory and simulation are reported as a function of temperature in order to estimate the importance of anharmonicity and inelastic scattering. At 300K, the thermal conductance of CNT-substrate interfaces is ≃1500 W/mm2K for diamond carbon, ≃500 W/mm2K for silicon, and ≃250 W/mm2K for copper.
AB - The interfacial thermal resistance (ITR) between a carbon nanotube (CNT) and adjoining carbon, silicon, or copper substrate is investigated through non-equilibrium molecular dynamics simulation (NEMD). The theoretical phonon transmission also is calculated using a simplified form of the diffuse mismatch model (DMM) with direct simulation of the phonon density of states (DOS) under quasi-harmonic approximation. The results of theory and simulation are reported as a function of temperature in order to estimate the importance of anharmonicity and inelastic scattering. At 300K, the thermal conductance of CNT-substrate interfaces is ≃1500 W/mm2K for diamond carbon, ≃500 W/mm2K for silicon, and ≃250 W/mm2K for copper.
KW - Carbon nanotube
KW - Diffuse mismatch model
KW - Interfacial thermal resistance
KW - Molecular dynamics
KW - Phonon dispersion
UR - http://www.scopus.com/inward/record.url?scp=77953926945&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77953926945&partnerID=8YFLogxK
U2 - 10.1115/InterPACK2009-89096
DO - 10.1115/InterPACK2009-89096
M3 - Conference contribution
AN - SCOPUS:77953926945
SN - 9780791843604
T3 - Proceedings of the ASME InterPack Conference 2009, IPACK2009
SP - 55
EP - 61
BT - Proceedings of the ASME InterPack Conference 2009, IPACK2009
T2 - 2009 ASME InterPack Conference, IPACK2009
Y2 - 19 July 2009 through 23 July 2009
ER -