Nanoscale thermal, fluid, and mass transport
Molecular dynamics simulation
Laser-based materials characterization
Field-directed patterning for nanofabrication
Flow measurement in confined geometries
Micro- and nanoscale engineering
Nanotubes, nanowires, quantum dots, thin solid films and other
nanostructures transport heat much differently than structures with
macroscopic characteristic dimensions. As a result, interest in
assembling these nanostructures to build new composite 'metamaterials'
with extreme thermal conductivities has increased dramatically in recent
years in application areas ranging from electronics thermal management to
thermoelectric alternative energy generation.
Dr. Lukes's group investigates the size dependence of thermal transport
properties in nanostructures, the fundamental phonon transport mechanisms
governing these properties, and the emergent behavior arising from
thermal coupling between individual nanostructures.
Also of interest is the unusual fluid and mass transport
behavior occurring at the nanoscale. Dr. Lukes's group investigates this
behavior using a combination of computer modeling and experimental
techniques, with a view toward developing new approaches for
SELECTED RECENT PUBLICATIONS (past three years):
N. Zuckerman and J. R. Lukes, 2007, "Acoustic Phonon Scattering from
Particles Embedded in an Anisotropic Medium," to appear in Physical
N. Zuckerman and J. R. Lukes, 2007, "Atomistic Visualization of
Anisotropic Wave Propagation in Crystals," to appear in Journal of Heat
J. R. Lukes and H. Zhong, 2007, "Thermal Conductivity of Individual
Single-Wall Carbon Nanotubes," Journal of Heat Transfer, Vol. 129,
pp. 705-716. (Second most downloaded article in Journal of Heat
Transfer, June 2007)
R. Haggenmueller, C. Guthy, J. R. Lukes, J. E. Fischer, and
K. I. Winey, 2007, "Single Wall Carbon Nanotube/Polyethylene
Nanocomposites. Thermal and Electrical Conductivity," Macromolecules,
Vol. 40, pp. 2417-2421.
H. Zhong and J. R. Lukes, 2006, "Interfacial Thermal Resistance
between Carbon Nanotubes: Molecular Dynamics Simulations and Analytical
Thermal Modeling," Physical Review B, Vol. 74, 125403. (Selected for
the September 18, 2006 issue of Virtual Journal of Nanoscale Science &
Y. Chen, D. Li, J. R. Lukes, Z. Ni, and M. Chen, 2005, "Minimum
Superlattice Thermal Conductivity from Molecular Dynamics," Physical
Review B, Vol. 72, 174302. (Selected for
the November 21, 2005 issue of Virtual Journal of Nanoscale Science &
Y. Chen, D. Li, J. R. Lukes, and A. Majumdar, 2005, "Monte Carlo
Simulation of Silicon Nanowire Thermal Conductivity," Journal of Heat
Transfer, Vol. 127, pp. 1129-1137.
J. R. Lukes and C.-L. Tien, 2004, "Molecular Dynamics Simulation of
Thermal Conduction in Nanoporous Thin Films," Microscale
Thermophysical Engineering, Vol. 8, pp. 341-359.
Y. Chen, D. Li, J. Yang, Y. Wu, J. R. Lukes, and A. Majumdar, 2004,
"Molecular Dynamics Study of the Lattice Thermal Conductivity of Kr/Ar
Superlattice Nanowires," Physica B, Vol. 349, pp. 270-280.
Y. Chen, J. R. Lukes, D. Li, J. Yang, and Y. Wu, 2004, "Thermal
Expansion and Impurity Effects on Lattice Thermal Conductivity of Solid
Argon," Journal of Chemical Physics, Vol. 120, pp. 3841-3846.