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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

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

Yang Wu


Outline
Outline Thermoelectric Zn-Sb-In

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 – E Thermoelectric Zn-Sb-In F (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 Thermoelectric Zn-Sb-In :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


Structural and Phase Relations of Thermoelectric Zn-Sb-In Zn5Sb4In2-d & Zn9Sb6In2: I


Structural and Phase Relations of Thermoelectric Zn-Sb-In Zn5Sb4In2-d & Zn9Sb6In2: II


Thermoelectric property characterizations for zn 5 sb 4 in 2 i
Thermoelectric Property Characterizations for Thermoelectric Zn-Sb-In Zn5Sb4In2-δ: I


Thermoelectric Property Characterizations for Thermoelectric Zn-Sb-In Zn5Sb4In2-δ: II


Sphalerite-type solid solution Thermoelectric Zn-Sb-In

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


Future work
Future Work Thermoelectric Zn-Sb-In

  • 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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