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Thermoelectric transport in topological insulator Bi2Te2Se bulk crystals

Published online by Cambridge University Press:  05 August 2013

Yang Xu ,
Helin Cao ,
Ireneusz Miotkowski  and
Yong P. Chen
Yang Xu
Affiliation:
Department of Physics, Purdue University, West Lafayette, IN 47907 U.S.A Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907 U.S.A
Helin Cao
Affiliation:
Department of Physics, Purdue University, West Lafayette, IN 47907 U.S.A Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907 U.S.A
Ireneusz Miotkowski
Affiliation:
Department of Physics, Purdue University, West Lafayette, IN 47907 U.S.A
Yong P. Chen
Affiliation:
Department of Physics, Purdue University, West Lafayette, IN 47907 U.S.A Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907 U.S.A
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Abstract

Bi2Te2Se (BTS221) bulk crystals were recently discovered as an intrinsic 3D topological insulator. We have synthesized this material, and studied the transport properties of BTS221 from the thermoelectrics perspective. Temperature (T) dependent resistivity measurement indicates surface dominant transports in our sample at low T. We also report Seebeck measurement between 50K to room T.

Keywords

thermoelectricTlsemiconducting
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. 9 - 12
Copyright
Copyright © Materials Research Society 2013 

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References

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