Statistics – Applications
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005esasp1290..112f&link_type=abstract
In: Microgravity applications programme: Successful teaming of science and industry. Edited by Andrew Wilson, coordination: Benn
Statistics
Applications
Physical Sciences, Cadmium Telluride Crystallisation
Scientific paper
Cadmium telluride (CdTe) and related compounds are promising materials for radiation sensors and photorefractive devices. Their commercial use is still limited owing to the problems in growing them. This MAP project is a close collaboration of scientists and industry to improve the growth of these materials and to demonstrate the potential for different applications. The activities concentrate on growth from the melt using "dewetting". The phenomenon of dewetting had been observed in various experiments under microgravity and it has an enormous influence on the quality of the material. The theoretical understanding of this mechanism opened the possibility of dewetting not only under microgravity but also on Earth by controlling pressure. Remarkable results have been achieved by dewetting growth on Earth, showing an improvement in crystal quality. The goal is to establish dewetting growth for industrial production under terrestrial conditions. This will be achieved by a combination of experiments under microgravity (STS-95, Foton-M2, International Space Station), a laboratory research programme, building a theory of the dewetting mechanism and close collaboration with industry partners to develop CdTe-Based devices. Important milestones include the first CdTe crystal grown by dewetting on Earth and the development of CdTe-based devices.
Benz Klaus-Werner
Dieguez Ernesto
Duffar T.
Fiederle Michael
Launay J. C.
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