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Title: Synthesis and thermoelectric properties of Cu excess Cu2ZnSnSe4

Abstract

Quaternary stannites with an excess of copper were successfully synthesized by reacting the constituent elements and subsequent solid state annealing, followed by densification by hot-pressing. The composition for each specimen was confirmed with a combination of Rietveld refinement and elemental analysis. Their high temperature thermoelectric properties were measured from 300 K to 800 K and compared with that of Cu2ZnSnSe4. The thermal conductivity decreases significantly with increasing Cu content at elevated temperatures due to the crystal structure of this material system. A maximum ZT value of 0.86 was obtained at 800 K for the specimen with the highest Cu content, Cu2.2Zn0.8SnSe4.

Authors:
 [1];  [2];  [3]
  1. University of South Florida, Tampa (USF)
  2. ORNL
  3. University of South Florida, Tampa
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1156791
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Physica Status Solidi rrl
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 1862-6254
Country of Publication:
United States
Language:
English
Subject:
thermoelectric

Citation Formats

Dong, Yongkwan, Wang, Hsin, and Nolas, G. Synthesis and thermoelectric properties of Cu excess Cu2ZnSnSe4. United States: N. p., 2014. Web. doi:10.1002/pssr.201308274.
Dong, Yongkwan, Wang, Hsin, & Nolas, G. Synthesis and thermoelectric properties of Cu excess Cu2ZnSnSe4. United States. https://doi.org/10.1002/pssr.201308274
Dong, Yongkwan, Wang, Hsin, and Nolas, G. 2014. "Synthesis and thermoelectric properties of Cu excess Cu2ZnSnSe4". United States. https://doi.org/10.1002/pssr.201308274.
@article{osti_1156791,
title = {Synthesis and thermoelectric properties of Cu excess Cu2ZnSnSe4},
author = {Dong, Yongkwan and Wang, Hsin and Nolas, G},
abstractNote = {Quaternary stannites with an excess of copper were successfully synthesized by reacting the constituent elements and subsequent solid state annealing, followed by densification by hot-pressing. The composition for each specimen was confirmed with a combination of Rietveld refinement and elemental analysis. Their high temperature thermoelectric properties were measured from 300 K to 800 K and compared with that of Cu2ZnSnSe4. The thermal conductivity decreases significantly with increasing Cu content at elevated temperatures due to the crystal structure of this material system. A maximum ZT value of 0.86 was obtained at 800 K for the specimen with the highest Cu content, Cu2.2Zn0.8SnSe4.},
doi = {10.1002/pssr.201308274},
url = {https://www.osti.gov/biblio/1156791}, journal = {Physica Status Solidi rrl},
issn = {1862-6254},
number = 1,
volume = 8,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 2014},
month = {Wed Jan 01 00:00:00 EST 2014}
}