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Electron Poor Materials Research Group EPM RG. Synthesis, Characterizations and Properties of Thermoelectric Zn-Sb-In & “Thermoelectric” (ZnSnSb 2 ) x (InSb) 2-2x. Yang Wu. Outline. Thermoelectric Zn-Sb-In Ternaries Synthesis explorations of Zn-Sb-In system Property Characterizations

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Presentation Transcript
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Synthesis, Characterizations and Properties of Thermoelectric Zn-Sb-In & “Thermoelectric” (ZnSnSb2)x(InSb)2-2x

Yang Wu

outline
Outline

Thermoelectric Zn-Sb-In Ternaries

  • Synthesis explorations of Zn-Sb-In system
  • Property Characterizations

Solid Solution (ZnSnSb2)1-x(InSb)2x

  • Metal-Non Metal Transition
  • Thermoelectric Property
motivation thermoelectric b zn 4 sb 3

E – EF (eV)

Zn5InSb5?

Motivation – Thermoelectric b-Zn4Sb3

37 e-for Zn6Sb5

38 e- to be electron precise

synthetic exploration of zn sb in system

Region 2:Zn9Sb6In2

P21 21 21(No. 19), Z=8

Metastable

Region 2:Zn5Sb4In2

Pbcn (No. 60), Z=4

Region 1:Zn4Sb3

Synthetic Exploration of Zn-Sb-In System
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Sphalerite-type solid solution

(ZnSnSb2)1-x(InSb)2x + 4Sn

future work
Future Work
  • Growth of B crystal in metal melts (Cu, Pt, Ni etc.)
  • Make SiB3, a reported III-IV compound
  • Transport property measurements of (ZnSnSb2)1-x(InSb)2x
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