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.
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|
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