Heat Transfer & Transport Phenomena in Microscale

ISBN Print: 1-56700-150-5

THERMAL CONDUCTIVITY OF InAs/AlSb SUPERLATTICES

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DOI: 10.1615/1-56700-150-5.530
pages 369-372

Theodorian Borca-Tasciuc Mechanical, Aerospace and Nuclear Engineering Department, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Mechanical and Aerospace Engineering Department University of California at Los Angeles, Los Angeles, CA 90095-1597

D. Achimov Mechanical and Aerospace Engineering Department University of California at Los Angeles, Los Angeles, CA 90095-1597

W.L. Liu Mechanical and Aerospace Engineering Department University of California at Los Angeles, Los Angeles, CA 90095-1597

Gang Chen Mechanical and Aerospace Engineering Department University of California, Los Angeles, CA 90095-1597

H.-W. Ren ECE Department and SVEC, University of Houston, TX 77478

C.-H. Lin ECE Department and SVEC, University of Houston, TX 77478

S. S. Pei ECE Department and SVEC, University of Houston, TX 77478

Abstract

In this work, we present experimental studies on the cross-plane thermal conductivity of InAs/AlSb superlattices. The thermal conductivities of MBE grown InAs/AlSb superlattices are measured using the 3ω method from 80-300 K. The influence of the growth temperature and post annealing is investigated. Significant reductions in thermal conductivity are observed in these superlattices compared to the predictions of the Fourier heat conduction theory based on the bulk material properties. These results suggest that the interface conditions strongly influence the thermal conductivity.

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