Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/11582
Title: Synthesis, bottom up assembly and thermoelectric properties of Sb-doped PbS nanocrystal building blocks
Authors: Cadavid, Doris
Wei, Kaya
Liu, Yu
Zhang, Yu
Li, Mengyao
Genc, Aziz
Berestok, Taisiia
Keywords: Nanocrystals
Thermoelectrics
Bottom-up engineering
Doping
Chalcogenides
Lead sulfide
Publisher: MDPI
Abstract: The precise engineering of thermoelectric materials using nanocrystals as their building blocks has proven to be an excellent strategy to increase energy conversion efficiency. Here we present a synthetic route to produce Sb-doped PbS colloidal nanoparticles. These nanoparticles are then consolidated into nanocrystalline PbS:Sb using spark plasma sintering. We demonstrate that the introduction of Sb significantly influences the size, geometry, crystal lattice and especially the carrier concentration of PbS. The increase of charge carrier concentration achieved with the introduction of Sb translates into an increase of the electrical and thermal conductivities and a decrease of the Seebeck coefficient. Overall, PbS:Sb nanomaterial were characterized by two-fold higher thermoelectric figures of merit than undoped PbS.
URI: https://doi.org/10.3390/ma14040853
https://hdl.handle.net/11147/11582
ISSN: 1996-1944
Appears in Collections:Materials Science and Engineering / Malzeme Bilimi ve Mühendisliği
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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