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Please use this identifier to cite or link to this item: http://dyuthi.cusat.ac.in/purl/2469

Title: Thermal characterisation of doped InP using photoacoustic technique
Authors: Sajan, D George
Achamma, Kurian
Martin, Lase
Nampoori, V P N
Vallabhan, C P G
Technology
Keywords: thermal diffusivity
compound semiconductor
doping
Issue Date: 2001
Publisher: SPIE
Abstract: An open cell photoacoustic configuration has been employed to evaluate the thermal diffusivity of pure InP as well as InP doped with sulphur and iron. Chopped optical radiation at 488 nm from an Ar-ion laser has been used to excite photoacoustic signals which been detected by a sensitive electret microphone. Thermal diffusivity value have been calculated from phase versus chopping frequency plots. Doped sample are found to show a reduced value for thermal diffusivity in comparison with intrinsically pure sample. The results have been interpreted in terms of the mechanisms of heat generation and transmission in semiconductors.
URI: http://dyuthi.cusat.ac.in/purl/2469
Appears in Collections:Dr.C P Girijavallabhan

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