Crystal Research and Technology
Cryst. Res. Technol. 39, 481 (2004) - Abstract -

Dewetted growth of CdTe in microgravity (STS-95)

M. Fiederle, T. Duffar*, V. Babentsov, K. W. Benz, P. Dusserre**, V. Corregidor***, E. Dieguez***, P. Delaye****, G. Roosen****, V. Chevrier*****, and J. C. Launay*****

Freiburger Materialforschungszentrum, D-79104 Freiburg, Germany
*EPM, ENSHMG BP95 F-38402 Saint Martin d’Hères, France
**DTEN, Commissariat à l'Energie Atomique, 17, rue des Martyrs, F-38054 Grenoble, France
***Departamento de Fisica de Materiales, Universidad Autonoma de Madrid, E-28034 Madrid
****Laboratoire Charles Fabry, Institut d´Optique Théorique et Appliquée, 91403 Orsay Cedex, France6 Institut de Chimie de la Matière Condensée de Bordeaux, ICMCB-CNRS- UPR 9048, 87 avenue du Docteur A. Schweitzer, 33608 PESSAC Cedex

Keywords CdTe, (Cd,Zn)Te, melt growth , Bridgman, detached, dewetting, microgravity
PACS 61.72.-y, 71.55.Gs, 78.55.Et, 81.05.Dz, 81.10.-h
DOI 10.1002/crat.200410215

Two CdTe crystals had been grown in microgravity during the STS-95 mission. The growth configuration was dedicated to obtain dewetting of the crystals and to achieve high quality material. Background for the performed experiments was based on the theory of the dewetting and previous experience. The after flight characterization of the crystals has demonstrated existance of the dewetting areas of the crystals and their improved quality regarding the earth grown reference sample. The samples had been characterized by EDAX, Synchrotron X-ray topography, Photoluminescence and Optical and IR microscopy.



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