Thermoelectric properties of In-PbTe

Chanyoung Kang, Junpil Hwang, Woochul Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Thermoelectric(TE) conversion devices can directly convert heat to electricity. Lead Telluride are known for fabulous thermoelectric material in 600-900K temperature range. It is suggested that power factor of this material can be enhanced by incorporating group III dopants through a distortion of the electron density of state i.e., the resonant level. Therefore, we synthesized In doped PbTe and measured its thermoelectric properties. Seebeck coefficient increase -50μ V/K(R.T) to -330 μ V/K as temperature increase. Electrical conductivity decrease 1000 S/cm(R.T) to 100 S/cm as temperature increase. Thermal conductivity decrease 2.3W/mK(R.T) to 1.2W/mK. As a result. In0.1at% PbTe has Thermoelectric figure of merit ZT-0.7 at 775K.

Original languageEnglish
Title of host publication2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011
Pages438-439
Number of pages2
DOIs
Publication statusPublished - 2011
Event2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011 - Jeju, Korea, Republic of
Duration: 2011 Oct 182011 Oct 21

Publication series

Name2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011

Other

Other2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011
Country/TerritoryKorea, Republic of
CityJeju
Period11/10/1811/10/21

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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