Thermoelectric properties of compacted Bi2-xSb xTe3 nanoplatelets with nominal composition of x = 1.5

Chia Jyi Liu, Gao Jhih Liu, Yen Liang Liu, Liang Ru Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Nanoplatelets of Bi2-xSbxTe3 with nominal composition of x = 1.5 are synthesized using hydrothermal methods. The resulting powders are cold pressed and sintered in an evacuated and encapsulated ampoule at 340°C. Scanning electron microscope atomic force microscope, and transmission electron microscope are used to observe the microstructure of nanoplatelets and consolidated Bi0.5Sb1.5Te3. The consolidated Bi0.5Sb1.5Te3 is in fact nanostructured bulk. The power factor and thermal conductivity are 11.6 μW/cm-K2 and 0.37 W/m K at 295 K, respectively. The small thermal conductivity could be largely attributed to its nanostructured nature of the consolidated bulk. The resulting dimensionless figure of merit ZT is 0.93 at 295 K.

Original languageEnglish
Title of host publication9th European Conference on Thermoelectrics, ECT 2011
Pages103-106
Number of pages4
DOIs
Publication statusPublished - 2012 Dec 1
Event9th European Conference on Thermoelectrics, ECT 2011 - Thessaloniki, Greece
Duration: 2011 Sep 282011 Sep 30

Publication series

NameAIP Conference Proceedings
Volume1449
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other9th European Conference on Thermoelectrics, ECT 2011
CountryGreece
CityThessaloniki
Period11-09-2811-09-30

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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  • Cite this

    Liu, C. J., Liu, G. J., Liu, Y. L., & Chen, L. R. (2012). Thermoelectric properties of compacted Bi2-xSb xTe3 nanoplatelets with nominal composition of x = 1.5. In 9th European Conference on Thermoelectrics, ECT 2011 (pp. 103-106). (AIP Conference Proceedings; Vol. 1449). https://doi.org/10.1063/1.4731507