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Quaternary Chalcogenide Nanocrystals: Synthesis of Cu2ZnSnSe4 by Solid State Reaction and their Thermoelectric Properties

Published online by Cambridge University Press:  06 August 2013

Umme Farva  and
Chan Park
Umme Farva
Affiliation:
Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Republic of Korea
Chan Park
Affiliation:
Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Republic of Korea
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Abstract

In this paper, synthesis of Cu2ZnSnSe4 (CZTSe) materials by using simple and cost-effective solid state reaction method from the elemental Cu, ZnO, SnO and elemental Se powders are carried out. The SEM images show spherical, non-uniform size with aggregation of nanopowders. The phase separation and thermal analysis of the milled powders suggested that most of the starting powders reacted because of a mechanical alloying effect during milling process. After the solid state reaction at above 500 °C, the nanopowders crystallized into stannite single phase, which are confirm by XRD spectra. The thermoelectric properties of synthesized powder are under study.

Keywords

annealingcrystallinescanning electron microscopy (SEM)
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1543: Symposium H – Nanoscale Thermoelectric Materials, Thermal and Electrical Transport, and Applications to Solid-State Cooling and Power Generation , 2013 , pp. 137 - 142
Copyright
Copyright © Materials Research Society 2013 

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