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Determination of thermophysical parameters of porous silicon using a photothermal technique
Conference proceeding   Open access  Peer reviewed

Determination of thermophysical parameters of porous silicon using a photothermal technique

S. Abdalla, K. Easawi, S. Negm, G. M. Youssef, T. A. El-Brolossy and H. Talaat
Review of Scientific Instruments, Vol.74(1), pp.848-850
Papers from the 12th International Conference on Photoacoustic and Photothermal Phenomena
01/2003
DOI: https://doi.org/10.1063/1.1526151

Abstract

The effective thermophysical properties, diffusivity (α), effusivity (e), and thermal conductivity (k) have been measured by photoacoustic (PA) and photothermal interferometry (PTI) for silicon samples of varying porosities. The experimental results show a reduction in the thermal conductivity with increasing the porosity, by two orders of magnitude. The results obtained by PTI are compared to those obtained by the PA technique.
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