Abstract
Periodic porous structures offer unique material solutions to thermoelectric applications. With recent interest in phonon band gap engineering, these periodic structures can result in reduction of the phonon thermal conductivity due to coherent destruction of phonon modes characteristic in phononic crystals. In this paper, we numerically study phonon transport in periodic porous silicon phononic crystal structures. We develop a model for the thermal conductivity of phononic crystal that accounts for both coherent and incoherent phonon effects, and show that the phonon thermal conductivity is reduced to less than 4% of the bulk value for Si at room temperature. This has substantial impact on thermoelectric applications, where the efficiency of thermoelectric materials is inversely proportional to the thermal conductivity.
Similar content being viewed by others
References
D.G. Cahill, W.K. Ford, K.E. Goodson, G.D. Mahan, A. Majumdar, H.J. Maris, R. Merlin, S.R. Phillpot, Nanoscale thermal transport. J. Appl. Phys. 93, 793–818 (2003)
A.I. Boukai, Y. Bunimovich, J. Tahir-Kheli, J.-K. Yu, W.A. Goddard, J.R. Heath, Silicon nanowires as efficient thermoelectric materials. Nature 451, 168–171 (2008)
G. Chen, Size and interface effects on thermal conductivity of superlattices and periodic thin-film structures. J. Heat Transf. 119, 220–229 (1997)
M.S. Dresselhaus, G. Dresselhaus, X. Sun, Z. Zhang, S.B. Cronin, T. Koga, J.Y. Ying, G. Chen, The promise of low-dimensional thermoelectric materials. Microscale Thermophys. Eng. 3, 89–100 (1999)
S. Riffat, X. Ma, Thermoelectrics: A review of present and potential applications. Appl. Therm. Eng. 23, 913–935 (2003)
G. Benedetto, L. Boarino, R. Spangnolo, Evaluation of thermal conductivity of porous silicon layers by a photoacoustic method. Appl. Phys. A, Mater. Sci. Process., 64, 155–159 (1997)
U. Bernini, R. Bernini, P. Maddalena, E. Massera, P. Rucco, Determination of thermal diffusivity of suspended porous silicon films by thermal lens techniques. Appl. Phys. A, Mater. Sci. Process., 81, 399–404 (2005)
D. Song, G. Chen, Thermal conductivity of periodic microporous silicon films. Appl. Phys. Lett. 84, 687–689 (2004)
P.E. Hopkins, P.M. Norris, L.M. Phinney, S.A. Policastro, R.G. Kelly, Thermal conductivity in nanoporous gold films during electron–phonon nonequilibrium. J. Nanomater. 2008, 418050 (2008). doi:10.1155/2008/418050
R.H. Olsson III, I. El-Kady, Microfabricated phononic crystals devices and applications. Meas. Sci. Technol. 20, 012002 (2009)
M.G. Holland, Analysis of lattice thermal conductivity. Phys. Rev. 132, 2461–2471 (1963)
P.E. Hopkins, P.T. Rakich, R.H. Olsson III, I. El-Kady, L.M. Phinney, Origin of reduction in phonon thermal conductivity of microporous solids. Appl. Phys. Lett. 95, 161902 (2009)
G. Nilsson, G. Nelin, Study of the homology between silicon and germanium by thermal-neutron spectrometry. Phys. Rev. B, Condens. Matter Mater. Phys. 6, 3777–3786 (1972)
B.N. Brockhouse, Lattice vibrations in silicon and germanium. Phys. Rev. Lett. 2, 256–258 (1959)
G. Chen, Nanoscale Energy Transport and Conversion: A Parallel Treatment of Electrons, Molecules, Phonons, and Photons (Oxford University Press, New York, 2005)
C.Y. Ho, R.W. Powell, P.E. Liley, Thermal conductivity of the elements. J. Phys. Chem. Ref. Data 1, 279–422 (1972)
A.S. Henry, G. Chen, Spectral phonon transport properties of silicon based on molecular dynamics simulations and lattice dynamics. J. Comput. Theor. Nanosci. 5, 1–12 (2008)
A.D. Mcconnell, K.E. Goodson, Thermal conduction in silicon micro- and nanostructures. Annu. Rev. Heat Transf. 14, 129–168 (2005)
A.D. Mcconnell, S. Uma, K.E. Goodson, Thermal conductivity of doped polysilicon layers. J. Microelectromech. Syst. 10, 360–369 (2001)
D.E. Gray, American Institute of Physics Handbook (McGraw-Hill, New York, 1972)
A. Eucken, Die warmeleitfahigkeit keramischer feuerfester stoffe: Ihre berechnung aus der warmeleitfahigkeit der bestandteile (Thermal conductivity of ceramic refractory materials: calculations from thermal conductivity of constituents). Forsch. Geb. Ing.wes. (Ausg. B) 3/4, 353 (1932)
N. Mingo, Calculation of Si nanowire thermal conductivity using complete phonon dispersion relation. Phys. Rev. B, Condens. Matter Mater. Phys. 68, 113308 (2003)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Hopkins, P.E., Phinney, L.M., Rakich, P.T. et al. Phonon considerations in the reduction of thermal conductivity in phononic crystals. Appl. Phys. A 103, 575–579 (2011). https://doi.org/10.1007/s00339-010-6189-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00339-010-6189-8