Comparison of the 3ω method and time-domain thermoreflectance for measurements of the cross-plane thermal conductivity of epitaxial semiconductors

Yee Kan Koh, Suzanne L. Singer, Woochul Kim, Joshua M.O. Zide, Hong Lu, David G. Cahill, Arun Majumdar, Arthur C. Gossard

Research output: Contribution to journalArticle

141 Citations (Scopus)

Abstract

The 3ω technique and time-domain thermoreflectance (TDTR) are two experimental methods capable of measuring the cross-plane thermal conductivity of thin films. We compare the cross-plane thermal conductivity measured by the 3ω method and TDTR on epitaxial (In0.52 Al0.48) x (In0.53 Ga0.47) 1-x As alloy layers with embedded ErAs nanoparticles. Thermal conductivities measured by TDTR at low modulation frequencies (∼1 MHz) are typically in good agreement with thermal conductivities measured by the 3ω method. We discuss the accuracy and limitations of both methods and provide guidelines for estimating uncertainties for each approach.

Original languageEnglish
Article number054303
JournalJournal of Applied Physics
Volume105
Issue number5
DOIs
Publication statusPublished - 2009 Mar 24

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thermal conductivity
frequency modulation
estimating
nanoparticles
thin films

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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Koh, Yee Kan ; Singer, Suzanne L. ; Kim, Woochul ; Zide, Joshua M.O. ; Lu, Hong ; Cahill, David G. ; Majumdar, Arun ; Gossard, Arthur C. / Comparison of the 3ω method and time-domain thermoreflectance for measurements of the cross-plane thermal conductivity of epitaxial semiconductors. In: Journal of Applied Physics. 2009 ; Vol. 105, No. 5.
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Comparison of the 3ω method and time-domain thermoreflectance for measurements of the cross-plane thermal conductivity of epitaxial semiconductors. / Koh, Yee Kan; Singer, Suzanne L.; Kim, Woochul; Zide, Joshua M.O.; Lu, Hong; Cahill, David G.; Majumdar, Arun; Gossard, Arthur C.

In: Journal of Applied Physics, Vol. 105, No. 5, 054303, 24.03.2009.

Research output: Contribution to journalArticle

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