resumo
The unique tunable properties of glasses make them versatilematerialsfor developing numerous state-of-the-art optical technologies. Todesign new optical glasses with tailored properties, an extensiveunderstanding of the intricate correlation between their chemicalcomposition and physical properties is mandatory. By harnessing thisknowledge, the full potential of vitreous matrices can be unlocked,driving advancements in the field of optical sensors. We herein demonstratethe feasibility of using fluoride phosphate glasses co-doped withtrivalent praseodymium (Pr3+) and ytterbium (Yb3+) ions for temperature sensing over a broad range of temperatures.These glasses possess high chemical and thermal stability, workingas luminescent primary thermometers that rely on the thermally coupledlevels of Pr3+ that eliminate the need for recurring calibrationprocedures. The prepared glasses exhibit a relative thermal sensitivityand uncertainty at a temperature of 1.0% K-1 and0.5 K, respectively, making them highly competitive with the existingluminescent thermometers. Our findings highlight that Pr3+-containing materials are promising for developing cost-effectiveand accurate temperature probes, taking advantage of the unique versatilityof these vitreous matrices to design the next generation of photonictechnologies.
palavras-chave
FLUOROPHOSPHATE GLASSES; UP-CONVERSION; STATE; COORDINATION
categoria
Chemistry; Materials Science
autores
Maturi, FE; Gaddam, A; Brites, CDS; Souza, JMM; Eckert, H; Ribeiro, SJL; Carlos, LD; Manzani, D
nossos autores
Anuraag Gaddam
Investigador Auxiliar
Carlos Brites
Professor associado
Fernando Eduardo Maturi
Bolseiro de investigação
Luís Carlos
Professor CatedráticoProjectos
CICECO - Aveiro Institute of Materials (UIDB/50011/2020)
CICECO - Aveiro Institute of Materials (UIDP/50011/2020)
Associated Laboratory CICECO-Aveiro Institute of Materials (LA/P/0006/2020)
agradecimentos
This work was developed wit h i n the scope of the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020, UIDP/50011/2020 & LA/P/0006/2020 and Shape of Water (PTDC/NAN-PRO/3881/2020) financed by Portuguese funds through the FCT/MEC (PIDDAC). F.E.M. acknowl-edges the funding received from the European Union's Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No. 823941 (FUNGLASS) and the financial support from the Foundation for Science and Technology (FCT) through the research grant UI/BD/151445/2021. A.G. is grateful for the post-doctoral support received from Sa~o Paulo Research Foundation (FAPESP) under grant 2021/06370-0. The NMR studies were supported by the Center of Research, Technology, and Education of Vitreous Materials (CeRTEV), funded by FAPESP, project number 2013/07793-6. D.M. acknowledges the Brazilian funding agency National Council for Scientific and Technological Development (CNPq, 405048/2021-1). H.E. acknowledges support by CNPq grants 310870/2020-8 and 422159/2018-2.