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Examining the Effect of Cu and Mn Dopants on the Structure of Zinc Blende ZnS Nanopowders
It is known that doping zinc sulfide (ZnS) nanoparticles with Mn or Cu ions significantly affects their luminescent properties. Herein, we investigated how dopant atoms are incorporated into the structure of ZnS using X-ray diffraction and multi-edge X-ray absorption spectroscopy. The observed broad...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10488788/ https://www.ncbi.nlm.nih.gov/pubmed/37687518 http://dx.doi.org/10.3390/ma16175825 |
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author | Kuzmin, Alexei Pudza, Inga Dile, Milena Laganovska, Katrina Zolotarjovs, Aleksejs |
author_facet | Kuzmin, Alexei Pudza, Inga Dile, Milena Laganovska, Katrina Zolotarjovs, Aleksejs |
author_sort | Kuzmin, Alexei |
collection | PubMed |
description | It is known that doping zinc sulfide (ZnS) nanoparticles with Mn or Cu ions significantly affects their luminescent properties. Herein, we investigated how dopant atoms are incorporated into the structure of ZnS using X-ray diffraction and multi-edge X-ray absorption spectroscopy. The observed broadening of the X-ray diffraction patterns indicates an average crystallite size of about 6 nm. By analyzing the Zn, Mn, and Cu K-edge extended X-ray absorption fine structure (EXAFS) spectra using the reverse Monte Carlo method, we were able to determine the relaxations of the local environments around the dopants. Our findings suggested that upon the substitution of Zn by Mn or Cu ions, there is a shortening of the Cu–S bonds by 0.08 Å, whereas the Mn–S bonds exhibited lengthening by 0.07 Å. These experimental results were further confirmed by first-principles density functional theory calculations, which explained the increase in the Mn–S bond lengths due to the high-spin state of Mn [Formula: see text] ions. |
format | Online Article Text |
id | pubmed-10488788 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-104887882023-09-09 Examining the Effect of Cu and Mn Dopants on the Structure of Zinc Blende ZnS Nanopowders Kuzmin, Alexei Pudza, Inga Dile, Milena Laganovska, Katrina Zolotarjovs, Aleksejs Materials (Basel) Article It is known that doping zinc sulfide (ZnS) nanoparticles with Mn or Cu ions significantly affects their luminescent properties. Herein, we investigated how dopant atoms are incorporated into the structure of ZnS using X-ray diffraction and multi-edge X-ray absorption spectroscopy. The observed broadening of the X-ray diffraction patterns indicates an average crystallite size of about 6 nm. By analyzing the Zn, Mn, and Cu K-edge extended X-ray absorption fine structure (EXAFS) spectra using the reverse Monte Carlo method, we were able to determine the relaxations of the local environments around the dopants. Our findings suggested that upon the substitution of Zn by Mn or Cu ions, there is a shortening of the Cu–S bonds by 0.08 Å, whereas the Mn–S bonds exhibited lengthening by 0.07 Å. These experimental results were further confirmed by first-principles density functional theory calculations, which explained the increase in the Mn–S bond lengths due to the high-spin state of Mn [Formula: see text] ions. MDPI 2023-08-25 /pmc/articles/PMC10488788/ /pubmed/37687518 http://dx.doi.org/10.3390/ma16175825 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Kuzmin, Alexei Pudza, Inga Dile, Milena Laganovska, Katrina Zolotarjovs, Aleksejs Examining the Effect of Cu and Mn Dopants on the Structure of Zinc Blende ZnS Nanopowders |
title | Examining the Effect of Cu and Mn Dopants on the Structure of Zinc Blende ZnS Nanopowders |
title_full | Examining the Effect of Cu and Mn Dopants on the Structure of Zinc Blende ZnS Nanopowders |
title_fullStr | Examining the Effect of Cu and Mn Dopants on the Structure of Zinc Blende ZnS Nanopowders |
title_full_unstemmed | Examining the Effect of Cu and Mn Dopants on the Structure of Zinc Blende ZnS Nanopowders |
title_short | Examining the Effect of Cu and Mn Dopants on the Structure of Zinc Blende ZnS Nanopowders |
title_sort | examining the effect of cu and mn dopants on the structure of zinc blende zns nanopowders |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10488788/ https://www.ncbi.nlm.nih.gov/pubmed/37687518 http://dx.doi.org/10.3390/ma16175825 |
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