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Method for the Detailed Characterization of Cosputtered Inorganic Luminescent Material Libraries
[Image: see text] Understanding the behavior of combinatorially developed luminescent materials requires detailed characterization methods that have been lacking thus far. We developed a device for directly surveying the luminescent properties of thin-film libraries created through combinatorial gra...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical
Society
2018
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6234486/ https://www.ncbi.nlm.nih.gov/pubmed/30277748 http://dx.doi.org/10.1021/acscombsci.8b00068 |
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author | Merkx, Evert P. J. van der Kolk, Erik |
author_facet | Merkx, Evert P. J. van der Kolk, Erik |
author_sort | Merkx, Evert P. J. |
collection | PubMed |
description | [Image: see text] Understanding the behavior of combinatorially developed luminescent materials requires detailed characterization methods that have been lacking thus far. We developed a device for directly surveying the luminescent properties of thin-film libraries created through combinatorial gradient sputter deposition. Step-scan recorded excitation-, emission- and luminescence decay spectra of a thin-film library were resolved and combined with EDX measurements on the same film, relating composition to luminescent properties. This technique was applied to a single-substrate gradient thin-film library of NaBr(0.73)I(0.27) to NaBr(0.09)I(0.91), doped with 6.5% to 16.5% Eu(2+). This gradient film closely followed Vegard’s law, with emission fluently shifting from 428 to 439 nm. In comparison, pure NaBr:Eu(2+) showed emission at 428 nm and NaI:Eu(2+) at 441 nm. Luminescence decay measurements demonstrated a great degree of concentration quenching in the gradient film. From these measurements we could conclude that an optimized phosphor would most efficiently luminesce when close to NaI:Eu(2+). This gradient film confirmed that the method presented in this work allows to both study and optimize luminescent behavior in a broad range of host- and dopant systems. |
format | Online Article Text |
id | pubmed-6234486 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | American Chemical
Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-62344862018-11-15 Method for the Detailed Characterization of Cosputtered Inorganic Luminescent Material Libraries Merkx, Evert P. J. van der Kolk, Erik ACS Comb Sci [Image: see text] Understanding the behavior of combinatorially developed luminescent materials requires detailed characterization methods that have been lacking thus far. We developed a device for directly surveying the luminescent properties of thin-film libraries created through combinatorial gradient sputter deposition. Step-scan recorded excitation-, emission- and luminescence decay spectra of a thin-film library were resolved and combined with EDX measurements on the same film, relating composition to luminescent properties. This technique was applied to a single-substrate gradient thin-film library of NaBr(0.73)I(0.27) to NaBr(0.09)I(0.91), doped with 6.5% to 16.5% Eu(2+). This gradient film closely followed Vegard’s law, with emission fluently shifting from 428 to 439 nm. In comparison, pure NaBr:Eu(2+) showed emission at 428 nm and NaI:Eu(2+) at 441 nm. Luminescence decay measurements demonstrated a great degree of concentration quenching in the gradient film. From these measurements we could conclude that an optimized phosphor would most efficiently luminesce when close to NaI:Eu(2+). This gradient film confirmed that the method presented in this work allows to both study and optimize luminescent behavior in a broad range of host- and dopant systems. American Chemical Society 2018-10-02 2018-11-12 /pmc/articles/PMC6234486/ /pubmed/30277748 http://dx.doi.org/10.1021/acscombsci.8b00068 Text en Copyright © 2018 American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes. |
spellingShingle | Merkx, Evert P. J. van der Kolk, Erik Method for the Detailed Characterization of Cosputtered Inorganic Luminescent Material Libraries |
title | Method for the Detailed Characterization of Cosputtered
Inorganic Luminescent Material Libraries |
title_full | Method for the Detailed Characterization of Cosputtered
Inorganic Luminescent Material Libraries |
title_fullStr | Method for the Detailed Characterization of Cosputtered
Inorganic Luminescent Material Libraries |
title_full_unstemmed | Method for the Detailed Characterization of Cosputtered
Inorganic Luminescent Material Libraries |
title_short | Method for the Detailed Characterization of Cosputtered
Inorganic Luminescent Material Libraries |
title_sort | method for the detailed characterization of cosputtered
inorganic luminescent material libraries |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6234486/ https://www.ncbi.nlm.nih.gov/pubmed/30277748 http://dx.doi.org/10.1021/acscombsci.8b00068 |
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