Energy Transfer Studies in Tb3+-Yb3+ Co-Doped Phosphate Glasses

Detailed optical properties of Tb3+-Yb3+ co-doped phosphate glasses were performed based on their emission spectra and decay measurements. Under blue excitation of Tb3+ at 488 nm, the intensity of Yb3+ emissi...

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Autores principales:	Hadil Benrejeb, Kevin Soler-Carracedo, Antonio Diego Lozano-Gorrín, Sana Hraiech, Inocencio Rafael Martin
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	rare earth decay curves up-conversion down-conversion optical properties Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/96e365e531374ced8d7f904b2e20fd96
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spelling	oai:doaj.org-article:96e365e531374ced8d7f904b2e20fd962021-11-25T18:13:35ZEnergy Transfer Studies in Tb<sup>3+</sup>-Yb<sup>3+</sup> Co-Doped Phosphate Glasses10.3390/ma142267821996-1944https://doaj.org/article/96e365e531374ced8d7f904b2e20fd962021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6782https://doaj.org/toc/1996-1944Detailed optical properties of Tb<sup>3+</sup>-Yb<sup>3+</sup> co-doped phosphate glasses were performed based on their emission spectra and decay measurements. Under blue excitation of Tb<sup>3+</sup> at 488 nm, the intensity of Yb<sup>3+</sup> emissions gradually enhanced upon increasing the Yb<sup>3+</sup> content until 1 mol% indicated an energy transfer from Tb<sup>3+</sup> to Yb<sup>3+</sup>. Otherwise, under near infrared excitation of Yb<sup>3+</sup> at 980 nm, these glasses exhibit intense green luminescence, which led to cooperative sensitization of the <sup>5</sup>D<sub>4</sub> level of Tb<sup>3+</sup> ions. A cooperative energy transfer mechanism was proposed on the basis of the study on the influence of Yb<sup>3+</sup> concentration on up-conversion emission intensity, as well as the dependence of this up-conversion intensity on near infrared excitation power. Moreover, the temporal evolution of the up-conversion emissions have been studied, which was in positive agreement with a theoretical model of cooperative up-conversion luminescence that showed a temporal emission curve with rise and decay times of the involved levels.Hadil BenrejebKevin Soler-CarracedoAntonio Diego Lozano-GorrínSana HraiechInocencio Rafael MartinMDPI AGarticlerare earthdecay curvesup-conversiondown-conversionoptical propertiesTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6782, p 6782 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	rare earth decay curves up-conversion down-conversion optical properties Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	rare earth decay curves up-conversion down-conversion optical properties Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Hadil Benrejeb Kevin Soler-Carracedo Antonio Diego Lozano-Gorrín Sana Hraiech Inocencio Rafael Martin Energy Transfer Studies in Tb<sup>3+</sup>-Yb<sup>3+</sup> Co-Doped Phosphate Glasses
description	Detailed optical properties of Tb<sup>3+</sup>-Yb<sup>3+</sup> co-doped phosphate glasses were performed based on their emission spectra and decay measurements. Under blue excitation of Tb<sup>3+</sup> at 488 nm, the intensity of Yb<sup>3+</sup> emissions gradually enhanced upon increasing the Yb<sup>3+</sup> content until 1 mol% indicated an energy transfer from Tb<sup>3+</sup> to Yb<sup>3+</sup>. Otherwise, under near infrared excitation of Yb<sup>3+</sup> at 980 nm, these glasses exhibit intense green luminescence, which led to cooperative sensitization of the <sup>5</sup>D<sub>4</sub> level of Tb<sup>3+</sup> ions. A cooperative energy transfer mechanism was proposed on the basis of the study on the influence of Yb<sup>3+</sup> concentration on up-conversion emission intensity, as well as the dependence of this up-conversion intensity on near infrared excitation power. Moreover, the temporal evolution of the up-conversion emissions have been studied, which was in positive agreement with a theoretical model of cooperative up-conversion luminescence that showed a temporal emission curve with rise and decay times of the involved levels.
format	article
author	Hadil Benrejeb Kevin Soler-Carracedo Antonio Diego Lozano-Gorrín Sana Hraiech Inocencio Rafael Martin
author_facet	Hadil Benrejeb Kevin Soler-Carracedo Antonio Diego Lozano-Gorrín Sana Hraiech Inocencio Rafael Martin
author_sort	Hadil Benrejeb
title	Energy Transfer Studies in Tb<sup>3+</sup>-Yb<sup>3+</sup> Co-Doped Phosphate Glasses
title_short	Energy Transfer Studies in Tb<sup>3+</sup>-Yb<sup>3+</sup> Co-Doped Phosphate Glasses
title_full	Energy Transfer Studies in Tb<sup>3+</sup>-Yb<sup>3+</sup> Co-Doped Phosphate Glasses
title_fullStr	Energy Transfer Studies in Tb<sup>3+</sup>-Yb<sup>3+</sup> Co-Doped Phosphate Glasses
title_full_unstemmed	Energy Transfer Studies in Tb<sup>3+</sup>-Yb<sup>3+</sup> Co-Doped Phosphate Glasses
title_sort	energy transfer studies in tb<sup>3+</sup>-yb<sup>3+</sup> co-doped phosphate glasses
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/96e365e531374ced8d7f904b2e20fd96
work_keys_str_mv	AT hadilbenrejeb energytransferstudiesintbsup3supybsup3supcodopedphosphateglasses AT kevinsolercarracedo energytransferstudiesintbsup3supybsup3supcodopedphosphateglasses AT antoniodiegolozanogorrin energytransferstudiesintbsup3supybsup3supcodopedphosphateglasses AT sanahraiech energytransferstudiesintbsup3supybsup3supcodopedphosphateglasses AT inocenciorafaelmartin energytransferstudiesintbsup3supybsup3supcodopedphosphateglasses
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Energy Transfer Studies in Tb<sup>3+</sup>-Yb<sup>3+</sup> Co-Doped Phosphate Glasses

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