Enhanced thermoelectric performance of compacted Bi0.5Sb 1.5Te3 nanoplatelets with low thermal conductivity

Chia Jyi Liu, Gao Jhih Liu, Yen Liang Liu, Liang Ru Chen, Alan B. Kaiser

Research output: Contribution to journalReview article

16 Citations (Scopus)

Abstract

We report fabrication of compacted Bi0.5Sb1.5Te 3 nanoplatelets using hydrothermal methods followed by cold pressing and sintering in an evacuated ampoule at various temperature of 300-380 °C. The compacted Bi0.5Sb1.5Te3 sintered at 340 °C has the highest power factor of 11.6 μW/cmK2 and its thermal conductivity is 0.37 W/mK at 295 K, which is very low as compared to the typical value of 1 W/mK. The resulting dimensionless figure of merit ZT is 0.93 at 295 K.

Original languageEnglish
Pages (from-to)1755-1761
Number of pages7
JournalJournal of Materials Research
Volume26
Issue number15
DOIs
Publication statusPublished - 2011 Aug 14

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cold pressing
ampoules
figure of merit
Thermal conductivity
sintering
thermal conductivity
Sintering
Fabrication
fabrication
Temperature
temperature

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Liu, Chia Jyi ; Liu, Gao Jhih ; Liu, Yen Liang ; Chen, Liang Ru ; Kaiser, Alan B. / Enhanced thermoelectric performance of compacted Bi0.5Sb 1.5Te3 nanoplatelets with low thermal conductivity. In: Journal of Materials Research. 2011 ; Vol. 26, No. 15. pp. 1755-1761.
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Enhanced thermoelectric performance of compacted Bi0.5Sb 1.5Te3 nanoplatelets with low thermal conductivity. / Liu, Chia Jyi; Liu, Gao Jhih; Liu, Yen Liang; Chen, Liang Ru; Kaiser, Alan B.

In: Journal of Materials Research, Vol. 26, No. 15, 14.08.2011, p. 1755-1761.

Research output: Contribution to journalReview article

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T1 - Enhanced thermoelectric performance of compacted Bi0.5Sb 1.5Te3 nanoplatelets with low thermal conductivity

AU - Liu, Chia Jyi

AU - Liu, Gao Jhih

AU - Liu, Yen Liang

AU - Chen, Liang Ru

AU - Kaiser, Alan B.

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AB - We report fabrication of compacted Bi0.5Sb1.5Te 3 nanoplatelets using hydrothermal methods followed by cold pressing and sintering in an evacuated ampoule at various temperature of 300-380 °C. The compacted Bi0.5Sb1.5Te3 sintered at 340 °C has the highest power factor of 11.6 μW/cmK2 and its thermal conductivity is 0.37 W/mK at 295 K, which is very low as compared to the typical value of 1 W/mK. The resulting dimensionless figure of merit ZT is 0.93 at 295 K.

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