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Solute Effects on Interfacial Thermal Conductance

Published online by Cambridge University Press:  29 May 2013

Andrew J. Green  and
Hugh H. Richardson
Andrew J. Green
Affiliation:
Ohio University, Department of Chemistry and Biochemistry, Athens, OH 45701, U.S.A.
Hugh H. Richardson
Affiliation:
Ohio University, Department of Chemistry and Biochemistry, Athens, OH 45701, U.S.A.
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Abstract

The thermal conductance of a gold/water interface has been found to change as a function of the surrounding’s adhesion energy. We measure the thermal conductance of a lithographically prepared gold nanowire with a thin film nanoscale thermal sensor composed of AlGaN:Er3+. The temperature of the nanowire is measured as a function of incident laser intensity. The slope of this plot is inversely proportional to the thermal conductance of the nanoparticle/surrounding’s interface. We show that the conductance of the nanoparticle/water interface increases with the molality of the solution. This was tested with multiple solutes including NaCl, and D-Glucose. The interfacial conductance of pure water is reported to be 44 MW/m2K and the conductance saturates to 100 MW/m2K at a molality of 0.21 m.

Keywords

Authermal conductivityEr
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1543: Symposium V – Nanoscale Thermoelectric Materials, Transport Phenomena, and Applications to Solid-State Cooling and Power Generation , 2013 , pp. 151 - 157
Copyright
Copyright © Materials Research Society 2013 

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References

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