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Strip inverse-configuration photopyroelectric technique to measure the thermal conductivity of bulk samples

Manohar, Srirang and Asokan, S (2001) Strip inverse-configuration photopyroelectric technique to measure the thermal conductivity of bulk samples. In: Applied Physics Letters, 78 (4). pp. 469-471.

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Abstract

The strip inverse-configuration photopyroelectric technique to measure the thermal conductivity of bulk samples of metals, semiconductors, and insulators is presented. It utilizes a narrow (500 \mu m wide) strip of a 9 \mu m thick pyroelectric sensor in an inverse configuration. A mathematical model is outlined that yields an expression for the output voltage of the pyroelectric sensor following heat dissipation into the sample, in a frequency range where the proposed measurement is possible. Experimentally, the sensor was operated in an "isothermal-voltage" mode to identify the frequency regime within which the measurement of the thermal conductivity of representative samples was possible after suitable calibration of the system.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to American Institute of Physics (AIP).
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation and Applied Physics (Formally ISU)
Date Deposited: 08 Jun 2005
Last Modified: 19 Sep 2010 04:19
URI: http://eprints.iisc.ernet.in/id/eprint/3287

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