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

doi:10.1557/jmr.2011.158

Enhanced thermoelectric performance of compacted Bi_0.5Sb _1.5Te₃ nanoplatelets with low thermal conductivity

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

Department of Physics

Research output: Contribution to journal › Review article

17 Citations (Scopus)

Abstract

We report fabrication of compacted Bi_0.5Sb_1.5Te ₃ nanoplatelets using hydrothermal methods followed by cold pressing and sintering in an evacuated ampoule at various temperature of 300-380 °C. The compacted Bi_0.5Sb_1.5Te₃ 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 language	English
Pages (from-to)	1755-1761
Number of pages	7
Journal	Journal of Materials Research
Volume	26
Issue number	15
DOIs	https://doi.org/10.1557/jmr.2011.158
Publication status	Published - 2011 Aug 14

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All Science Journal Classification (ASJC) codes

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

Cite this

Liu, C. J., Liu, G. J., Liu, Y. L., Chen, L. R., & Kaiser, A. B. (2011). Enhanced thermoelectric performance of compacted Bi_0.5Sb _1.5Te₃ nanoplatelets with low thermal conductivity. Journal of Materials Research, 26(15), 1755-1761. https://doi.org/10.1557/jmr.2011.158

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AU - Kaiser, Alan B.

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10.1557/jmr.2011.158