Particle size-related limitations of persistent phosphors based on the doped Y3Al2Ga3O12 system

Abstract Co-doped Ce3+, Cr3+ and Pr3+ yttrium–aluminium–gallium garnet powders of various sizes were obtained by co-precipitation method. The microstructure and morphology were investigated by XRPD, TEM and gas porosimetry. The luminescence properties were studied by excitation and emission spectra,...

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Autores principales:	Vitalii Boiko, Zhengfa Dai, Marta Markowska, Cristina Leonelli, Cecilia Mortalò, Francesco Armetta, Federica Ursi, Giorgio Nasillo, Maria Luisa Saladino, Dariusz Hreniak
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e8cdcd40f93646c78f58c83a81f4a319
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spelling	oai:doaj.org-article:e8cdcd40f93646c78f58c83a81f4a3192021-12-02T11:46:00ZParticle size-related limitations of persistent phosphors based on the doped Y3Al2Ga3O12 system10.1038/s41598-020-80335-92045-2322https://doaj.org/article/e8cdcd40f93646c78f58c83a81f4a3192021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80335-9https://doaj.org/toc/2045-2322Abstract Co-doped Ce3+, Cr3+ and Pr3+ yttrium–aluminium–gallium garnet powders of various sizes were obtained by co-precipitation method. The microstructure and morphology were investigated by XRPD, TEM and gas porosimetry. The luminescence properties were studied by excitation and emission spectra, quantum yield and decay times. Thermoluminescence measurements were performed to evaluate the activation energy, traps redistribution and frequency factor. Limitation in the energy transfer between dopant ions in the small particles, traps depth and surface defects were considered and investigated as responsible for the quenching of persistent luminescence. The phosphors annealed at 1100 °C show the optimal persistent luminescence and nano-particle size.Vitalii BoikoZhengfa DaiMarta MarkowskaCristina LeonelliCecilia MortalòFrancesco ArmettaFederica UrsiGiorgio NasilloMaria Luisa SaladinoDariusz HreniakNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Vitalii Boiko Zhengfa Dai Marta Markowska Cristina Leonelli Cecilia Mortalò Francesco Armetta Federica Ursi Giorgio Nasillo Maria Luisa Saladino Dariusz Hreniak Particle size-related limitations of persistent phosphors based on the doped Y3Al2Ga3O12 system
description	Abstract Co-doped Ce3+, Cr3+ and Pr3+ yttrium–aluminium–gallium garnet powders of various sizes were obtained by co-precipitation method. The microstructure and morphology were investigated by XRPD, TEM and gas porosimetry. The luminescence properties were studied by excitation and emission spectra, quantum yield and decay times. Thermoluminescence measurements were performed to evaluate the activation energy, traps redistribution and frequency factor. Limitation in the energy transfer between dopant ions in the small particles, traps depth and surface defects were considered and investigated as responsible for the quenching of persistent luminescence. The phosphors annealed at 1100 °C show the optimal persistent luminescence and nano-particle size.
format	article
author	Vitalii Boiko Zhengfa Dai Marta Markowska Cristina Leonelli Cecilia Mortalò Francesco Armetta Federica Ursi Giorgio Nasillo Maria Luisa Saladino Dariusz Hreniak
author_facet	Vitalii Boiko Zhengfa Dai Marta Markowska Cristina Leonelli Cecilia Mortalò Francesco Armetta Federica Ursi Giorgio Nasillo Maria Luisa Saladino Dariusz Hreniak
author_sort	Vitalii Boiko
title	Particle size-related limitations of persistent phosphors based on the doped Y3Al2Ga3O12 system
title_short	Particle size-related limitations of persistent phosphors based on the doped Y3Al2Ga3O12 system
title_full	Particle size-related limitations of persistent phosphors based on the doped Y3Al2Ga3O12 system
title_fullStr	Particle size-related limitations of persistent phosphors based on the doped Y3Al2Ga3O12 system
title_full_unstemmed	Particle size-related limitations of persistent phosphors based on the doped Y3Al2Ga3O12 system
title_sort	particle size-related limitations of persistent phosphors based on the doped y3al2ga3o12 system
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/e8cdcd40f93646c78f58c83a81f4a319
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Particle size-related limitations of persistent phosphors based on the doped Y3Al2Ga3O12 system

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