Kazan (Volga region) Federal University, KFU
KAZAN
FEDERAL UNIVERSITY
 
OPTICAL TEMPERATURE SENSORS BASED ON DOWN-CONVERSION ND3+,YB3+:LIYF4 MICROPARTICLES
Form of presentationArticles in Russian journals and collections
Year of publication2023
  • Dokudovskaya Anna Konstantinovna, author
  • Korableva Stella Leonidovna, author
  • Morozov Oleg Aleksandrovich, author
  • Oleynikova Ekaterina Ilinichna, author
  • Pudovkin Maksim Sergeevich, author
  • Dokudovskaya Anna Konstantinovna, postgraduate kfu
  • Bibliographic description in the original language Ginkel A. et al. Optical Temperature Sensors Based on Down-Conversion Nd3+, Yb3+: LiYF4 Microparticles //Photonics. ? MDPI, 2023. ? T. 10. ? №. 4. ? S. 375.
    Annotation Nd3+ (0.3 mol.%), Yb3+ (0, 1, 2, 3 and 5 mol.%): LiYF4 phosphors were grown by the Bridgman?Stockbarger technique. The luminescence intensity ratio (LIR) of Nd3+ (4F3/2?4I9/2,~866 nm) and Yb3+ emission (2F5/2?2F7/2, ~980 nm) was taken as a parameter. The energy exchange between 4F3/2 (Nd3+) and 2F5/2 (Yb3+) occurs via phonons, which elucidates the LIR temperature dependence. The influence of the cross-relaxation process on the temperature sensitivity was estimated as negligible. The LIR function depends on the Yb3+ concentration at a fixed 0.3 mol.% Nd3+. The maximum Sa and Sr value were reached for Nd3+ (0.3%), Yb3+ (1.0%): LiYF4 (Sa = 0.007 K−1 at 320 K) and Nd3+ (0.3%), Yb3+ (5.0%): LiYF4 (Sr = 1, 1.03%*K−1 at 260 K), respectively.
    Keywords luminescent thermometry; down-conversion; optical temperature sensors
    Place of publication Базель, Швейцария
    The name of the journal PHOTONICS
    Publishing house MDPI
    URL https://doi.org/10.3390/photonics10040375
    Please use this ID to quote from or refer to the card https://repository.kpfu.ru/eng/?p_id=296163&p_lang=2

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