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Subsuming the Metal Seed to Transform Binary Metal Chalcogenide Nanocrystals into Multinary Compositions
[Image: see text] Direct colloidal synthesis of multinary metal chalcogenide nanocrystals typically develops dynamically from the binary metal chalcogenide nanocrystals with the subsequent incorporation of additional metal cations from solution during the growth process. Metal seeding of binary and...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9245353/ https://www.ncbi.nlm.nih.gov/pubmed/35593407 http://dx.doi.org/10.1021/acsnano.1c11144 |
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author | Kapuria, Nilotpal Conroy, Michele Lebedev, Vasily A Adegoke, Temilade Esther Zhang, Yu Amiinu, Ibrahim Saana Bangert, Ursel Cabot, Andreu Singh, Shalini Ryan, Kevin M |
author_facet | Kapuria, Nilotpal Conroy, Michele Lebedev, Vasily A Adegoke, Temilade Esther Zhang, Yu Amiinu, Ibrahim Saana Bangert, Ursel Cabot, Andreu Singh, Shalini Ryan, Kevin M |
author_sort | Kapuria, Nilotpal |
collection | PubMed |
description | [Image: see text] Direct colloidal synthesis of multinary metal chalcogenide nanocrystals typically develops dynamically from the binary metal chalcogenide nanocrystals with the subsequent incorporation of additional metal cations from solution during the growth process. Metal seeding of binary and multinary chalcogenides is also established, although the seed is solely a catalyst for nanocrystal nucleation and the metal from the seed has never been exploited as active alloying nuclei. Here we form colloidal Cu–Bi–Zn–S nanorods (NRs) from Bi-seeded Cu(2–x)S heterostructures. The evolution of these homogeneously alloyed NRs is driven by the dissolution of the Bi-rich seed and recrystallization of the Cu-rich stem into a transitional segment, followed by the incorporation of Zn(2+) to form the quaternary Cu–Bi–Zn–S composition. The present study also reveals that the variation of Zn concentration in the NRs modulates the aspect ratio and affects the nature of the majority charge carriers. The NRs exhibit promising thermoelectric properties with very low thermal conductivity values of 0.45 and 0.65 W/mK at 775 and 605 K, respectively, for Zn-poor and Zn-rich NRs. This study highlights the potential of metal seed alloying as a direct growth route to achieving homogeneously alloyed NRs compositions that are not possible by conventional direct methods or by postsynthetic transformations. |
format | Online Article Text |
id | pubmed-9245353 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-92453532022-07-01 Subsuming the Metal Seed to Transform Binary Metal Chalcogenide Nanocrystals into Multinary Compositions Kapuria, Nilotpal Conroy, Michele Lebedev, Vasily A Adegoke, Temilade Esther Zhang, Yu Amiinu, Ibrahim Saana Bangert, Ursel Cabot, Andreu Singh, Shalini Ryan, Kevin M ACS Nano [Image: see text] Direct colloidal synthesis of multinary metal chalcogenide nanocrystals typically develops dynamically from the binary metal chalcogenide nanocrystals with the subsequent incorporation of additional metal cations from solution during the growth process. Metal seeding of binary and multinary chalcogenides is also established, although the seed is solely a catalyst for nanocrystal nucleation and the metal from the seed has never been exploited as active alloying nuclei. Here we form colloidal Cu–Bi–Zn–S nanorods (NRs) from Bi-seeded Cu(2–x)S heterostructures. The evolution of these homogeneously alloyed NRs is driven by the dissolution of the Bi-rich seed and recrystallization of the Cu-rich stem into a transitional segment, followed by the incorporation of Zn(2+) to form the quaternary Cu–Bi–Zn–S composition. The present study also reveals that the variation of Zn concentration in the NRs modulates the aspect ratio and affects the nature of the majority charge carriers. The NRs exhibit promising thermoelectric properties with very low thermal conductivity values of 0.45 and 0.65 W/mK at 775 and 605 K, respectively, for Zn-poor and Zn-rich NRs. This study highlights the potential of metal seed alloying as a direct growth route to achieving homogeneously alloyed NRs compositions that are not possible by conventional direct methods or by postsynthetic transformations. American Chemical Society 2022-05-20 2022-06-28 /pmc/articles/PMC9245353/ /pubmed/35593407 http://dx.doi.org/10.1021/acsnano.1c11144 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Kapuria, Nilotpal Conroy, Michele Lebedev, Vasily A Adegoke, Temilade Esther Zhang, Yu Amiinu, Ibrahim Saana Bangert, Ursel Cabot, Andreu Singh, Shalini Ryan, Kevin M Subsuming the Metal Seed to Transform Binary Metal Chalcogenide Nanocrystals into Multinary Compositions |
title | Subsuming
the Metal Seed to Transform Binary Metal
Chalcogenide Nanocrystals into Multinary Compositions |
title_full | Subsuming
the Metal Seed to Transform Binary Metal
Chalcogenide Nanocrystals into Multinary Compositions |
title_fullStr | Subsuming
the Metal Seed to Transform Binary Metal
Chalcogenide Nanocrystals into Multinary Compositions |
title_full_unstemmed | Subsuming
the Metal Seed to Transform Binary Metal
Chalcogenide Nanocrystals into Multinary Compositions |
title_short | Subsuming
the Metal Seed to Transform Binary Metal
Chalcogenide Nanocrystals into Multinary Compositions |
title_sort | subsuming
the metal seed to transform binary metal
chalcogenide nanocrystals into multinary compositions |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9245353/ https://www.ncbi.nlm.nih.gov/pubmed/35593407 http://dx.doi.org/10.1021/acsnano.1c11144 |
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