Photoluminescent Y2O3:Eu3+@PVA Composite Dispersions and Films for anti-Counterfeiting Ink Applications Full article
| Journal |
Optical Materials
ISSN: 0925-3467 |
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| Output data | Year: 2024, Volume: 157, Number: Part 1, Article number : 116194, Pages count : 7 DOI: 10.1016/j.optmat.2024.116194 | ||||||
| Tags | Luminescent inks, polyvinyl alcohol, anti-counterfeiting, Monoclinic Y2O3, Eu3+ , laser synthesis | ||||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Ministry of Science and Higher Education of the Russian Federation | FWUZ-2021-0005 (121031700313-8) |
| 2 | Ministry of Science and Higher Education of the Russian Federation | FWUR-2024-0033 |
Abstract:
The development of high-tech anti-counterfeiting inks to detect counterfeit products is a crucial task for almost every aspect of modern life around the world. Herein, we report the synthesis of photoluminescent xY2O3:Eu3+@PVA (x = 0, 1, 2.5, 5, 10, 15, and 20 wt%) composite dispersions and films and demonstrate their potential for anti-counterfeiting inks applications. Laser-synthesized m-Y2O3:Eu3+ nanoparticles (daver = 20.3 ± 6.9 nm) with strong red luminescence due to 5D0 → 7F0-4 transitions of Eu3+ were used as a pigment to create luminescent composites. Detailed photoluminescence properties of the obtained composite dispersions and films as a function of m-Y2O3:Eu3+ content were investigated in combination with SEM, EDX, UV–Vis and IR spectroscopy data. Tuning of the CIE coordinates of xY2O3:Eu3+@PVA is observed by changing the excitation wavelength. The results of SEM showed that the photoluminescent nanoparticles were uniformly distributed in the PVA film. Photoluminescent m-Y2O3:Eu3+-doped PVA composite inks can be applied via spray, brush, and screen-printing techniques to create security features on various surfaces, including glass, ceramics, paper, plastics, and currency notes. These inks remain stable for at least four months and offer a distinctive luminescent signature that is challenging to replicate, owing to the unique photoluminescence spectrum of Eu3+ in the monoclinic Y2O3 polymorph.
Cite:
Kostyukov A.I.
, Kostyukova N.Y.
, Nashivochnikov A.A.
, Rakhmanova M.I.
, Suprun E.A.
Photoluminescent Y2O3:Eu3+@PVA Composite Dispersions and Films for anti-Counterfeiting Ink Applications
Optical Materials. 2024. V.157. NPart 1. 116194 :1-7. DOI: 10.1016/j.optmat.2024.116194 WOS Scopus РИНЦ AN OpenAlex
Photoluminescent Y2O3:Eu3+@PVA Composite Dispersions and Films for anti-Counterfeiting Ink Applications
Optical Materials. 2024. V.157. NPart 1. 116194 :1-7. DOI: 10.1016/j.optmat.2024.116194 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Jul 17, 2024 |
| Accepted: | Sep 27, 2024 |
| Published online: | Sep 28, 2024 |
| Published print: | Nov 1, 2024 |
Identifiers:
| Web of science: | WOS:001331142500001 |
| Scopus: | 2-s2.0-85205297224 |
| Elibrary: | 72432303 |
| Chemical Abstracts: | 2024:2192175 |
| OpenAlex: | W4402943253 |