Author, as appears in the article.: Ayachi, Fadwa; Saidi, Kamel; Dammak, Mohamed; Carvajal, Joan Josep; Pujol, Maria Cinta
Department: Química Física i Inorgànica
URV's Author/s: Carvajal Martí, Joan Josep / Pujol Baiges, Maria Cinta
Keywords: Tungstates Photoluminescence Phosphors Luminescence Excited-state absorption
Abstract: 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.
Thematic Areas: 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
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: joanjosep.carvajal@urv.cat mariacinta.pujol@urv.cat
Author identifier: 0000-0002-4389-7298 0000-0002-1052-8031
Record's date: 2024-08-03
Papper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://pubs.rsc.org/en/content/articlelanding/2024/ra/d4ra00626g
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Rsc Advances. 14 (19): 13494-13504
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
Article's DOI: 10.1039/d4ra00626g
Entity: Universitat Rovira i Virgili
Journal publication year: 2024
Publication Type: Journal Publications