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Design and Optical Properties of Rare Earth-Based Mixed-Anions (O, S, F) Compounds

Published online by Cambridge University Press:  11 February 2011

Damien Pauwels ,
Alain Demourgues  and
Alain Tressaud
Damien Pauwels
Affiliation:
Institut de Chimie de la Matiere Condensee de Bordeaux (ICMCB-CNRS), 87, avenue du Dr. Albert Schweitzer, Pessac cedex, 33608, FRANCE.
Alain Demourgues
Affiliation:
Institut de Chimie de la Matiere Condensee de Bordeaux (ICMCB-CNRS), 87, avenue du Dr. Albert Schweitzer, Pessac cedex, 33608, FRANCE.
Alain Tressaud
Affiliation:
Institut de Chimie de la Matiere Condensee de Bordeaux (ICMCB-CNRS), 87, avenue du Dr. Albert Schweitzer, Pessac cedex, 33608, FRANCE.
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Abstract

Rare earth-based mixed-anions (O, S, F) compounds have been prepared by solid state route. The structures have been determined on the basis of powder diffraction (X-ray/neutrons) refinement and/or single crystal analysis. They have been described as a stacking of [Sx] 2x- layers and fluorite type blocks. The evaluation of the rare earth environment (bondlength, number of neighbors) can be directly related to the bandgap and to the UV-visible absorption in the La-based compounds.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 755: Symposium DD – Solid-State Chemistry of Inorganic Materials IV , 2002 , DD7.8
Copyright
Copyright © Materials Research Society 2003

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References

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