@misc{10481/97411,
year = {2024},
month = {3},
url = {https://hdl.handle.net/10481/97411},
abstract = {The surface of Eu0.3La0.7F3 submicron particles is functionalized with a blue-emitting Ir(III) complex (1) specifically designed to coordinate lanthanide(III) ions efficiently through a carboxylic unit. In this Eu0.3La0.7F3@1 composite, the Ir(III) complexes are randomly coordinated to either superficial La(III) ions or Eu(III) ions (Ir-Lasurface and Ir-Eusurface pairs, respectively) and its color emission, a balance between blue (Ir-based) and red (Eu-based) light, can be tuned as a function of the excitation wavelength. Irradiation at the maximum of the excitation band in 1 promotes blue emission from Ir-Lasurface pairs and red emission from Eusurface ions sensitized by Ir → Eusurface energy transfer (EnT). At λexc = 396 nm (maximum of the Eu(III) 5L6 ← 7F0 absorption band) the red emission from inner Eu(III) ions becomes dominant. Excitation of 1 can also be achieved by two photon-absorption (TPA) since this complex has a moderate cross-section of σ2 = 9.4 ± 1.0 GM at 780 nm (σ2 = 5.8 ± 0.6 GM at 800 nm). Phosphorescence lifetime imaging (PLIM) allows the emission of individual particles to be visualized and the Ir-, Eusurface-, and Eucore-based emissions can be distinguished due to the significant differences in their respective emission lifetimes.},
organization = {Projects PID2022-138090NB-C21, TED2021.129598A.I00, and PID2020-114256RB-I00 funded by MICIN/AEI/10.13039/501100011033/FEDER and by European Union NextGeneration Eu/PRTR},
organization = {The Junta de Andalucía (FQM-195), FEDER/Junta de Andalucía – Consejería de Transformación Económica, Industria, Conocimiento y Universidades, Project B.FQM.328.UGR20},
organization = {University of Granada (Project PP2022-30B9251101)},
organization = {Universidad de Jaén, FEDER_UJA_2020 (project 2021/00627/001)},
organization = {Junta de Andalucía (PAIDI-FQM-337)},
organization = {Ramón y Cajal contract (grant RYC2021-034288-I, funded by MCIN/AEI/10.13039/501100011033 and by the European Union NextGenerationEU/PRTR)},
organization = {Juan de la Cierva Incorporation grant IJC2020-044040-I funded by MCIN/AEI/10.13039/501100011033 and by European Union NextGenerationEU/PRTR},
organization = {Ramón y Cajal contract (grant RYC2022-037255-I) funded by MCIN/AEI/10.13039/501100011033 and FSE+},
publisher = {Wiley},
keywords = {d–f energy transfer},
keywords = {iridium luminescence},
keywords = {lanthanide nanoparticles},
title = {Color-Tunable Luminescence of Eu-Doped LaF3 Particles Sensitized by d–f Energy Transfer from a Two-Photon Absorbing Ir(III) Complex},
doi = {10.1002/adom.202302954},
author = {Ye, Yating and Jiménez Gallego, Juan Ramón and Quesada Moreno, María del Mar and Navarro, Amparo and Ortega Naranjo, Esther María and Orte Gutiérrez, Ángel and Herrera Martínez, Juan Manuel},
}