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Dewetting as a powerful tool for thermoelectricity device applications

Khaled Ebnalwaled Hufny 1Thierry Duffar Lamin Sylla 

1. South valley university, Qena 83523, Egypt


InSb and GaSb polycrystals were grown using the dewetting technique. After optimization of the set up and growth parameters, four samples, 88 mm in length and 11 mm in diameter, have been obtained. The grown crystals were characterized by using X-ray analysis and thermoelectric power measurements. The effect of solidification type (attached, dewetted and so on) on the lattice parameters, microstrain and Crystallite size (D) of the obtained crystals was investigated. Their thermoelectrically properties were investigated also in relation to the type of solidification. Power factor values obtained for dewetted antimonide samples have shown the highest values obtained till now. These results indicate that dewetting can be used to produce InSb and GaSb with high power factor for thermoelectricity device applications.


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Related papers

Presentation: Poster at 17th International Conference on Crystal Growth and Epitaxy - ICCGE-17, General Session 2, by Khaled Ebnalwaled Hufny
See On-line Journal of 17th International Conference on Crystal Growth and Epitaxy - ICCGE-17

Submitted: 2013-04-12 18:40
Revised:   2013-04-12 18:49