Autor segons l'article: Pieprz, M; Runowski, M; Ledwa, K; Carvajal, J J; Bednarkiewicz, A; Marciniak, L
Departament: Química Física i Inorgànica
Autor/s de la URV: Carvajal Martí, Joan Josep
Paraules clau: Cr 3+ Cr3+ Crystal field strength Emission La3ga5geo14 cr3+ Long-persistent phosphorescence Luminescence intensity ratio Luminescenceintensity ratio Luminescent manometer Manometr Manometry Pressure sensor Rub Transition
Resum: Luminescence manometry is most often realized by a spectral shift of luminescence bands. Typically, the shift of spectrally narrow-band emission is quantified, which is highly precise but not very sensitive to pressure variations. Alternatively, the spectral shift of a broadband emission may be exploited, which is more sensitive but less precise, due to the difficulty in accurate determination of the band centroid. In this work, a mixed approach is presented, combining the shift in broadband chromium emission from the T-4(2) -> (4)A(2) level with a narrow-band neodymium emission (F-4(3/2) -> I-4(11/2) transition), observed in the La3Ga5GeO14 spectrum. The resulting optical Nd3+-based manometer demonstrates an absolute sensitivity of 2.92 cm(-1)/GPa for the F-4(3/2) -> I-4(11/2) electronic transition. An additional advantage of using this material is its negligible spectral shift with temperature, determined in the T range of 77-343 K, making the pressure readouts independent of this parameter (i.e., temperature variations).
Àrees temàtiques: Atomic and molecular physics, and optics Electronic, optical and magnetic materials Spectroscopy
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: joanjosep.carvajal@urv.cat
Identificador de l'autor: 0000-0002-4389-7298
Data d'alta del registre: 2025-02-24
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Referència a l'article segons font original: Acs Applied Optical Materials. 1 (6): 1080-1087
Referència de l'ítem segons les normes APA: Pieprz, M; Runowski, M; Ledwa, K; Carvajal, J J; Bednarkiewicz, A; Marciniak, L (2023). Improving Accuracy and Sensitivity of Lanthanide-Based Luminescent Manometers by Augmented Spectral Shift Method. Acs Applied Optical Materials, 1(6), 1080-1087. DOI: 10.1021/acsaom.2c00198
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2023
Tipus de publicació: Journal Publications
Repositori URV