Autor según el artículo: Ayachi, Fadwa; Saidi, Kamel; Dammak, Mohamed; Carvajal, Joan Josep; Pujol, Maria Cinta
Departamento: Química Física i Inorgànica
Autor/es de la URV: Carvajal Martí, Joan Josep / Pujol Baiges, Maria Cinta
Palabras clave: Tungstates Photoluminescence Phosphors Luminescence Excited-state absorption
Resumen: This study delves into the Single Band Ratiometric (SBR) method for luminescence thermometry, specifically employing Tb3+-doped LiSrGdW3O12 (LSGW) as a novel phosphor. The prepared samples crystallize with the tetragonal scheelite structure, with the optimal Tb3+ concentration pinpointed at 0.3Tb(3+) ions. When stimulated at diverse wavelengths exhibit luminescence characterized by varying heat dependencies. By utilizing two Fluorescence Intensity Ratio (FIR) parameters for the 544 nm green emission, firstly excited at 405 nm and 488 nm, and then at 405 nm and 379 nm, the Sr relative thermal sensitivity of the luminescent thermometer peaks at 3.56% K-1 and 4.21% K-1, respectively, within the temperature range of 290-440 K. The temperature resolution (delta T) of the luminescent thermometer is calculated to be delta T-1 = 0.68 K and delta T-2 = 0.75 K for T = 290 K, respectively. These outcomes underscore the applicability of Tb3+ ions for SBR thermometry, emphasizing the impact of the excitation wavelength on the thermal sensitivity. The study lays the groundwork for developing highly sensitive temperature probes by elucidating the interplay of material properties and physical processes.
Áreas temáticas: Zootecnia / recursos pesqueiros Saúde coletiva Química Odontología Medicina veterinaria Medicina iii Medicina ii Medicina i Materiais Interdisciplinar Geociências General chemistry General chemical engineering Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Economia Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Chemistry, multidisciplinary Chemistry (miscellaneous) Chemistry (all) Chemical engineering (miscellaneous) Chemical engineering (all) Biotecnología Biodiversidade Astronomia / física
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
Direcció de correo del autor: joanjosep.carvajal@urv.cat mariacinta.pujol@urv.cat
Identificador del autor: 0000-0002-4389-7298 0000-0002-1052-8031
Fecha de alta del registro: 2024-08-03
Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
Enlace a la fuente original: https://pubs.rsc.org/en/content/articlelanding/2024/ra/d4ra00626g
URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
Referencia al articulo segun fuente origial: Rsc Advances. 14 (19): 13494-13504
Referencia de l'ítem segons les normes APA: Ayachi, Fadwa; Saidi, Kamel; Dammak, Mohamed; Carvajal, Joan Josep; Pujol, Maria Cinta (2024). Enhancing thermometric efficiency: a wavelength excitation analysis in LiSrGdW<sub>3</sub>O<sub>12</sub>:Tb<SUP>3+</SUP> for superior single band ratiometric (SBR) thermometry. Rsc Advances, 14(19), 13494-13504. DOI: 10.1039/d4ra00626g
DOI del artículo: 10.1039/d4ra00626g
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2024
Tipo de publicación: Journal Publications