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Potential End-Use of a Europium Binary Photoluminescent Ink for Anti-Counterfeiting Security Documents
[Image: see text] Composed of two europium complexes doped in polyvinyl butyral as the host material, a novel photoluminescent ink has been formulated by synthesizing Eu(FAC)(3)Phen as a red luminescent down-shifting emitter and employing SrAl(2)O(4):Eu, Dy as a long persistent green phosphor. Both...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8582051/ https://www.ncbi.nlm.nih.gov/pubmed/34778637 http://dx.doi.org/10.1021/acsomega.1c03949 |
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author | Moudam, Omar Lakbita, Omar |
author_facet | Moudam, Omar Lakbita, Omar |
author_sort | Moudam, Omar |
collection | PubMed |
description | [Image: see text] Composed of two europium complexes doped in polyvinyl butyral as the host material, a novel photoluminescent ink has been formulated by synthesizing Eu(FAC)(3)Phen as a red luminescent down-shifting emitter and employing SrAl(2)O(4):Eu, Dy as a long persistent green phosphor. Both emitters are incorporated to design a photoluminescent ink with binary emission under a single UV excitation wavelength, where a red light is emitted when exposed under 325 nm, subsequently becoming green upon the UV light being switched off. The concept presented here is unequivocally distinct from the classical dual-mode emission, which requires a second extra near-infrared excitation around 980 nm to produce a binary luminescence. This work demonstrates the effortlessness of using one UV excitation for dual-mode visible emission while rendering the counterfeiting of confidential documents more onerous. |
format | Online Article Text |
id | pubmed-8582051 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-85820512021-11-12 Potential End-Use of a Europium Binary Photoluminescent Ink for Anti-Counterfeiting Security Documents Moudam, Omar Lakbita, Omar ACS Omega [Image: see text] Composed of two europium complexes doped in polyvinyl butyral as the host material, a novel photoluminescent ink has been formulated by synthesizing Eu(FAC)(3)Phen as a red luminescent down-shifting emitter and employing SrAl(2)O(4):Eu, Dy as a long persistent green phosphor. Both emitters are incorporated to design a photoluminescent ink with binary emission under a single UV excitation wavelength, where a red light is emitted when exposed under 325 nm, subsequently becoming green upon the UV light being switched off. The concept presented here is unequivocally distinct from the classical dual-mode emission, which requires a second extra near-infrared excitation around 980 nm to produce a binary luminescence. This work demonstrates the effortlessness of using one UV excitation for dual-mode visible emission while rendering the counterfeiting of confidential documents more onerous. American Chemical Society 2021-10-27 /pmc/articles/PMC8582051/ /pubmed/34778637 http://dx.doi.org/10.1021/acsomega.1c03949 Text en © 2021 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Moudam, Omar Lakbita, Omar Potential End-Use of a Europium Binary Photoluminescent Ink for Anti-Counterfeiting Security Documents |
title | Potential End-Use of a Europium Binary Photoluminescent
Ink for Anti-Counterfeiting Security Documents |
title_full | Potential End-Use of a Europium Binary Photoluminescent
Ink for Anti-Counterfeiting Security Documents |
title_fullStr | Potential End-Use of a Europium Binary Photoluminescent
Ink for Anti-Counterfeiting Security Documents |
title_full_unstemmed | Potential End-Use of a Europium Binary Photoluminescent
Ink for Anti-Counterfeiting Security Documents |
title_short | Potential End-Use of a Europium Binary Photoluminescent
Ink for Anti-Counterfeiting Security Documents |
title_sort | potential end-use of a europium binary photoluminescent
ink for anti-counterfeiting security documents |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8582051/ https://www.ncbi.nlm.nih.gov/pubmed/34778637 http://dx.doi.org/10.1021/acsomega.1c03949 |
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