Jump to main content
Jump to site search


Morphological investigations on the growth of defect rich Bi2Te3 nanorods and their thermoelectric properties

Abstract

Bi2Te3 nanorods (NRs) have been successfully synthesized at different reaction temperatures via surfactant assisted hydrothermal method. The experimental observations revealed that the reaction temperature, the SDBS surfactant (sodium dodecyl benzene sulphonate) and its concentration affect the morphology of the Bi2Te3. It is identified that an imperfect oriented attachment mechanism is the dominant growth mechanism for the evolution of Bi2Te3 NRs. Moreover, subsidiary growth mechanism namely Oswald ripening process could also affect the Bi2Te3 NRs growth process at higher reaction temperature. Thermoelectric property measurements revealed that flakes decorated Bi2Te3 NRs accomplished the maximum power factor value of ~1.32 μWcm-1K-2 at 410 K, which is higher than that of porous and smooth Bi2Te3 NRs. Such an enhancement in the power factor of flakes decorated Bi2Te3 NRs is primarily attributed to its outstanding electrical conductivity at 410 K.

Back to tab navigation

Supplementary files

Publication details

The article was received on 02 May 2018, accepted on 29 Jun 2018 and first published on 02 Jul 2018


Article type: Paper
DOI: 10.1039/C8CE00708J
Citation: CrystEngComm, 2018, Accepted Manuscript
  •   Request permissions

    Morphological investigations on the growth of defect rich Bi2Te3 nanorods and their thermoelectric properties

    S. M, S. Amirthapandian, J. P, P. Magudapathy and A. Kandasami, CrystEngComm, 2018, Accepted Manuscript , DOI: 10.1039/C8CE00708J

Search articles by author

Spotlight

Advertisements