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Surfactant Templated Assembly of Cubic Mesostructured Semiconductors Based on [Sn2Se6] 4- and Pt2+ in Single-Crystal Form.

Published online by Cambridge University Press:  11 February 2011

Pantelis N. Trikalitis  and
Mercouri G. Kanatzidis
Pantelis N. Trikalitis
Affiliation:
Department of Chemistry, Michigan State University, East Lansing, MI 48824
Mercouri G. Kanatzidis
Affiliation:
Department of Chemistry, Michigan State University, East Lansing, MI 48824
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Abstract

Mesostructured non-oxidic materials with cubic Ia-3d symmetry were prepared by linking [Sn2Se6] 4- clusters with Pt2+ in the presence of surfactant molecules. The use of long chain pyridinium-based surfactants (octadecyl- and eicosadecyl) afforded materials with exceptionally high cubic pore order and single-crystal particle morphology. By contrast trimethylammonium-based surfactants produced cubic mesostructured solids with inferior overall quality. We have also synthesized materials with significantly lower surfactant content by increasing the Pt2+:[Sn2Se6] 4- molar ratio, while maintaining the cubic pore symmetry. All materials are semiconductors with energy band-gap in the range 0.9<Eg<1.8 eV.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 755: Symposium DD – Solid-State Chemistry of Inorganic Materials IV , 2002 , DD6.14
Copyright
Copyright © Materials Research Society 2003

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References

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