Thermal Conductance of InAs Nanowire Composites

Summary, in English

The ability to measure and understand heat flow in nanowire composites is crucial for applications ranging from high-speed electronics to thermoelectrics. Here we demonstrate the measurement of the thermal conductance of nanowire composites consisting of regular arrays of InAs nanowires embedded in PMMA using time-domain thermoreflectance (TDTR). On the basis of a proposed model for heat flow in the composite, we can, as a consistency check, extract the thermal conductivity Lambda of the InAs nanowires and find Lambda(NW) = 5.3 +/- 1.5 W m(-1) K-1, in good agreement with theory and previous measurements of individual nanowires.

• Author: Ann I. Persson; Yee Kan Koh; David G. Cahill; Lars Samuelson; Heiner Linke
• Department/s: Solid State Physics
• Publishing year: 2009
• Language: English
• Pages: 4484-4488
• Publication/Series: Nano Letters
• Volume: 9
• Issue: 12
• Links: http://dx.doi.org/10.1021/nl902809j
• Document type: Journal article
• Publisher: The American Chemical Society (ACS)
• Topic: Nano Technology
• Status: Published
• ISBN/ISSN/Other: ISSN: 1530-6992