Microstructural Effects on the Thermoelectric Prooperties of PbTe

PbTe계의 열전특성에 대한 미세구조의 영향

  • 송병덕 (서울대학교 공과대학 무기재료공학과) ;
  • 김문규 (서울대학교 공과대학 무기재료공학과)
  • Published : 1990.04.01

Abstract

Microstructure of polycrystalline Lead Telluride was controlled by the change of sintering conditions. Three properties which determine the thermoelectric figure of merit of the material were measured in the temperature range of 300-650K in order to investigate the effect of each sintering condition on the thermoelectric efficiency. Based on the observed experimental results, defect structure is concluded to be more important than microstructure though both can be controlled by processing variables.

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References

  1. Direct Conversion of Heat to Electricity Review of Thermoelectric Effects F.E. Jamout. Jr.;J. Kaye(ed.);J.A. Welsh(ed.)
  2. Thermoelectric Materials and Devices I.B. Cadoff;E. Miller(ed.)
  3. Proc. 6th Int. Conf. on Thremoelectric Energy Conversion A Review of Lead Telluride Technology at UWIST D.M. Rowe;C.M. Bhandan
  4. J. Electrochem. Soc. v.109 An Electrolytic Polish and Etch for Lead Telluride M.K. Norr
  5. Electrical Conductivity in Ceramics and glass N.M. Tallan
  6. Rev. Sci. Instrum. v.48 no.7 Thermoelectric Power Measurements Using Analog Subtraction P.C. Eklund;A.K. Mabatah
  7. Sov. Phys. Solid. State. v.28 no.1 Changes in Electrophisical Properties of Lead Telluride Films Due to Reevaporation of Chalcogen from the Free Surface Yu.A. Boikov;V.A. Kutasov
  8. 서울대학교 공학석사 논문 PbTe계 열전반도체 재료의 특성연구 김동래
  9. J. Appl. Phys. v.32 no.9 Flash Method of Determining Thermal Diffusivity, Heat Capacity, and Thermal Conductivity W.J. Parker;R.J. Jenkins;C.P. Butler;G.L. Abbott