Synthesis, Structure, and Properties of Turbostratically Disordered (PbSe)1.18(TiSe2)2

Synthesis and structural characterization of a turbostratically disordered polymorph of (PbSe)1.18(TiSe2)2 is reported. The structure of this compound consists of an intergrowth between one distorted rock salt structured PbSe bilayer and two transition metal dichalcogenide structured Se–Ti–Se trilay...

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Bibliographic Details
Published in:Chemistry of materials 2013-06, Vol.25 (12), p.2404-2409
Main Authors: Moore, Daniel B, Beekman, Matt, Disch, Sabrina, Zschack, Paul, Häusler, Ines, Neumann, Wolfgang, Johnson, David C
Format: Article
Language:English
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Summary:Synthesis and structural characterization of a turbostratically disordered polymorph of (PbSe)1.18(TiSe2)2 is reported. The structure of this compound consists of an intergrowth between one distorted rock salt structured PbSe bilayer and two transition metal dichalcogenide structured Se–Ti–Se trilayers. In addition to the lattice mismatch, there is extensive rotational disorder between these constituents. The electrical resistivity of (PbSe)1.18(TiSe2)2 is a factor of 9 lower at room temperature, and the Seebeck coefficient is almost double that reported for the crystalline misfit layered compound analogue.
ISSN:0897-4756
1520-5002
DOI:10.1021/cm400090f