@article{10902/38065,
year = {2025},
month = {9},
url = {https://hdl.handle.net/10902/38065},
abstract = {The synthesis and characterization of 1 mol% Er3+-doped GdOF nanoparticles for use as optical nanothermometer are presented. The nanoparticles were synthesized using a microwave-assisted solvothermal method, followed by calcination at 700 °C to obtain the oxyfluoride phase. Temperature sensitivity was evaluated using the fluorescence intensity ratio (FIR) method, based on the thermally coupled 2H11/2 and 4S3/2 levels of Er3+ over the 294-423 K range. The results demonstrate a high sensitivity, with an absolute sensitivity of 3.07 × 10-3 K-1 at 423 K and a relative sensitivity of 1.25 % K-1 at 294 K. These competitive values position Er3+-doped GdOF nanoparticles as promising candidates for temperature sensing applications in biomedicine and nanotechnology, offering advantages over other Er3+-based nanothermometers in different host matrices.},
organization = {This work was partially supported by MICIU/AEI /10.13039/501100011033 and FEDER, UE through the projects PID2021-127656NB-I00 and PID2024 158839NB-I00. Additional support was received from University of Cantabria (Project P254). F.S. and G.M. thank the University of Catania within the PIA.CE.RI. 2024-2026 Linea 1 MIRACOLE project and the Erasmus+ Study program (KA131).},
publisher = {Elsevier},
publisher = {Journal of Luminescence, 2025, 284, 121290},
title = {Highly sensitive optical nanothermometry using Er3+-doped GdOF nanoparticles: synthesis, characterization, and temperature sensing applications},
author = {Scardaci, Federica and Espeso Martínez, José Ignacio and Pérez Francés, Diego and Malandrino, Graziella and Valiente Barroso, Rafael},
}