Version 1
: Received: 14 March 2024 / Approved: 14 March 2024 / Online: 17 March 2024 (16:04:05 CET)
How to cite:
Oleynikova, E.I.; Morozov, O.; Korableva, S.; Pudovkin, M. Spectral-Kinetic Characterization of YF3: Eu3+ and YF3: (Eu3+, Nd3+) Nanoparticles for Optical Temperature Sensing. Preprints2024, 2024030863. https://doi.org/10.20944/preprints202403.0863.v1
Oleynikova, E.I.; Morozov, O.; Korableva, S.; Pudovkin, M. Spectral-Kinetic Characterization of YF3: Eu3+ and YF3: (Eu3+, Nd3+) Nanoparticles for Optical Temperature Sensing. Preprints 2024, 2024030863. https://doi.org/10.20944/preprints202403.0863.v1
Oleynikova, E.I.; Morozov, O.; Korableva, S.; Pudovkin, M. Spectral-Kinetic Characterization of YF3: Eu3+ and YF3: (Eu3+, Nd3+) Nanoparticles for Optical Temperature Sensing. Preprints2024, 2024030863. https://doi.org/10.20944/preprints202403.0863.v1
APA Style
Oleynikova, E.I., Morozov, O., Korableva, S., & Pudovkin, M. (2024). Spectral-Kinetic Characterization of YF3: Eu3+ and YF3: (Eu3+, Nd3+) Nanoparticles for Optical Temperature Sensing. Preprints. https://doi.org/10.20944/preprints202403.0863.v1
Chicago/Turabian Style
Oleynikova, E.I., Stella Korableva and Maksim Pudovkin. 2024 "Spectral-Kinetic Characterization of YF3: Eu3+ and YF3: (Eu3+, Nd3+) Nanoparticles for Optical Temperature Sensing" Preprints. https://doi.org/10.20944/preprints202403.0863.v1
Abstract
Abstract: The YF3: (Eu3+, Nd3+) nanoparticles (orthorhombic phase, D ~ 130 nm)) were synthesized via the co-precipitation method with subsequent hydrothermal treatment and annealing. The Eu3+ τdecay linearly descends with the increase of temperature in the 80 - 320 K range. The τdecay (T) slope values of the annealed YF3: Eu3+ (2.5 and 5.0 mol. %) nanoparticles were the highest (110·10-4 and 67·10-4, μs/K in the whole 80 – 320 K range, respectively. Thus, these samples were chosen for further doping with Nd3+. The maximum Sa and Sr values based on the LIR (IEu/INd) function were 0.67 K-1 (at 80 K) and 0.86 %·K-1 (at 154 K), respectively. As it was mentioned above, the sin-gle-doped YF3: Eu3+ (2.5. %) nanoparticles showed the linearly decreasing τdecay (T) function (5D0 – 7F1 emission). The main idea of Nd3+ co-doping was to increase this slope value (as well as the sensitivity) by increasing the rate of τdecay (T) descent via the addition of one more tempera-ture-dependent channel of 5D0 excited state depopulation. Indeed, we managed to increase the slope (Sa) up to 180·10-4 K-1 at 80 K. This result is one of the highest compared to the world analogs.
Keywords
lifetime thermometry; Nd3+/Yb3+; Nd3+/Yb3+:YF3; down-conversion; optical temperature sensors
Subject
Chemistry and Materials Science, Materials Science and Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
