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The use of Soluble Metal-Polyselenide Complexes as Precursors to Binary and Ternary Solid Metal Selenides

Published online by Cambridge University Press:  28 February 2011

S. Dhingra  and
M. G. Kanatzidis
S. Dhingra
Affiliation:
Department of Chemistry and Center for Fundamental Materials Research, Michigan State University, East Lansing MI 48824USA
M. G. Kanatzidis
Affiliation:
Department of Chemistry and Center for Fundamental Materials Research, Michigan State University, East Lansing MI 48824USA
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Abstract

The use of several soluble metal polychalcogenides to prepare solid state materials is presented. Thermal gravimetric analysis (TGA) data, under inert atmosphere, of the molecular compounds (Ph4P)2[Cd(Se4)2], (Ph4P)4[Cu2Se14], (Ph4P)2[Cu4Se12], (Ph4P)4[In2Se21] and (Et4N)3[M3Se15], (M=In, TI), show that the corresponding binary solid state compounds are formed as single phases at temperatures as low as 530°C. We have grown films of CdSe, Cu2-xSe, β-In2Se3, TISe and CuInSe2 using these complexes as precursors. The films were prepared by pyrolysis of green precursor films, cast from DMF solutions. CuInSe2 was prepared by co-thermolysis of Cu/Sex and In/Sex complexes. The chemical, X-ray, spectroscopic and electron microscopic characterization of these molecular precursor-derived films as well as their charge transport characterization is reported.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 180: Symposium A – Better Ceramics Through Chemistry IV , 1990 , 825
Copyright
Copyright © Materials Research Society 1990

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References

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