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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File | Size | Format | |
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materials-14-00853-v2.pdf | 2.66 MB | Adobe PDF | View/Open |
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