Observation of compositional domains within individual copper indium sulfide quantum dots

The origin of photoluminescence in copper indium sulfide (CIS) quantum dots (Qdots) has previously been ascribed to a donor–acceptor pair (DAP) recombination, with a crystal lattice defect implicated as the origin of the donor state. In this study, electron energy-loss spectroscopy (EELS) was used t...

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Autores principales: Harvie, Andrew J., Booth, Matthew, Chantry, Ruth L., Hondow, Nicole, Kepaptsoglou, Demie M., Ramasse, Quentin M., Evans, Stephen D., Critchley, Kevin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royal Society of Chemistry 2016
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5048650/
https://www.ncbi.nlm.nih.gov/pubmed/27465708
http://dx.doi.org/10.1039/c6nr03269a
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author Harvie, Andrew J.
Booth, Matthew
Chantry, Ruth L.
Hondow, Nicole
Kepaptsoglou, Demie M.
Ramasse, Quentin M.
Evans, Stephen D.
Critchley, Kevin
author_facet Harvie, Andrew J.
Booth, Matthew
Chantry, Ruth L.
Hondow, Nicole
Kepaptsoglou, Demie M.
Ramasse, Quentin M.
Evans, Stephen D.
Critchley, Kevin
author_sort Harvie, Andrew J.
collection PubMed
description The origin of photoluminescence in copper indium sulfide (CIS) quantum dots (Qdots) has previously been ascribed to a donor–acceptor pair (DAP) recombination, with a crystal lattice defect implicated as the origin of the donor state. In this study, electron energy-loss spectroscopy (EELS) was used to observe defect-rich compositional domains within individual CIS Qdots, supporting a model of defect-state-mediated photoluminescence for these particles, and identifying them as an ideal model system for future study of lattice defects on Qdot properties.
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spelling pubmed-50486502016-10-12 Observation of compositional domains within individual copper indium sulfide quantum dots Harvie, Andrew J. Booth, Matthew Chantry, Ruth L. Hondow, Nicole Kepaptsoglou, Demie M. Ramasse, Quentin M. Evans, Stephen D. Critchley, Kevin Nanoscale Chemistry The origin of photoluminescence in copper indium sulfide (CIS) quantum dots (Qdots) has previously been ascribed to a donor–acceptor pair (DAP) recombination, with a crystal lattice defect implicated as the origin of the donor state. In this study, electron energy-loss spectroscopy (EELS) was used to observe defect-rich compositional domains within individual CIS Qdots, supporting a model of defect-state-mediated photoluminescence for these particles, and identifying them as an ideal model system for future study of lattice defects on Qdot properties. Royal Society of Chemistry 2016-09-28 2016-07-19 /pmc/articles/PMC5048650/ /pubmed/27465708 http://dx.doi.org/10.1039/c6nr03269a Text en This journal is © The Royal Society of Chemistry 2016 http://creativecommons.org/licenses/by/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution 3.0 Unported License (http://creativecommons.org/licenses/by/3.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Chemistry
Harvie, Andrew J.
Booth, Matthew
Chantry, Ruth L.
Hondow, Nicole
Kepaptsoglou, Demie M.
Ramasse, Quentin M.
Evans, Stephen D.
Critchley, Kevin
Observation of compositional domains within individual copper indium sulfide quantum dots
title Observation of compositional domains within individual copper indium sulfide quantum dots
title_full Observation of compositional domains within individual copper indium sulfide quantum dots
title_fullStr Observation of compositional domains within individual copper indium sulfide quantum dots
title_full_unstemmed Observation of compositional domains within individual copper indium sulfide quantum dots
title_short Observation of compositional domains within individual copper indium sulfide quantum dots
title_sort observation of compositional domains within individual copper indium sulfide quantum dots
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5048650/
https://www.ncbi.nlm.nih.gov/pubmed/27465708
http://dx.doi.org/10.1039/c6nr03269a
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