Chemistry and Physics Faculty Articles

Title

Preparation, Crystal Structure and Thermal Analysis of Cu2GeTe4 and Cu2SnTe4 Alloys

Document Type

Article

Publication Date

4-30-2014

Publication Title

Materials Science of Technology Physics Division

Keywords

Semiconductor alloys, X-Ray Diffraction, Differential Thermal Analysis (DTA), Cu2GeTe4 and Cu2SnT e4.

ISSN

1316-2012

Volume

8

Issue/No.

1

First Page

1

Last Page

9

Abstract

Polycrystalline samples (weight ~ 1g) o f Cu2GeTe4 and Cu2SnTe4alloys were prepared by the usual melt and anneal method and the products characterized by X-Ray Diffraction (XRD) and Differential Thermal Analysis (DTA) techniques. Cu2GeTe4and Cu2SnTe4crystallize in an orthorhombic structure (s.g. Imm2; No 44) with lattice parameters a=5.9281(4) Å, b=4.2211(6) Å, c=12.645(5)Å and a=6.0375(6) Å, b= 4.2706 (3) Å, c=12.844(1)Å, respectively. Both alloys show two thermal transitions: 762 and 636K upon heating and; 700 and 578K upon cooling for Cu2GeTe4; 702 and 636K upon heating and; 650 and 590K upon cooling for Cu2SnTe4.

ORCID ID

0000-0001-7825-8667

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