Temperature-dependent photoluminescence spectroscopy of Ce³⁺-doped LuAG Garnet material: A comparative study of bulky single-crystal and nanoscalle powder
Abstract
The emission and excitation spectra, associated with the 5d-4f transitions of Ce³⁺, particularly in garnet-type materials, have garnered significant attention for their applications in WLEDs and scintillations. In this paper, we present a comparative study of the luminescence spectroscopy of LuAG: Ce³⁺ garnet material in single-crystal (bulk) form and in its nanometric-scale counterpart.
The samples were prepared by Czochralski (Cz) and sol gel methods. The temperature dependence of photoluminescence spectra of LuAG: Ce 3+ is reported and detailed investigations of PL features in term of the thermal quenching phenomena, thermal stability, band shape and position has been performed. Furthermore, the electron-vibration interaction (EVI) involved in the 4f-5d optical transitions of LuAG:Ce³⁺ was investigated by estimating the parameters such as the Stokes shift, zero-phonon line (ZPL), Huang-Rhys factor (S), and effective phonon energy (ħω), alongside a comparative analysis between the single crystal and its nanoscale counterpart. In this paper, it has been shown that using of the Mcumber and Sturag relationship led us to predict values of Debye temperature with good agreement with experimental measurement. The possibility of the use of LuAG SC and NCs as luminescence thermometer is also investigated.
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BibTeX
@article{touil2026temperaturedependent,
title = {{Temperature-dependent photoluminescence spectroscopy of Ce³⁺-doped LuAG Garnet material: A comparative study of bulky single-crystal and nanoscalle powder}},
author = {Ahmed Rafik Touil and Lakhdar Guerbous and Mourad Derbal and Zohra Akhrib and Kheirreddine Lebbou},
journal = {Ceramics International},
year = {2026},
month = nov,
doi = {10.1016/j.ceramint.2025.07.240},
url = {https://hal.science/hal-05847259v1},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - JOUR
TI - Temperature-dependent photoluminescence spectroscopy of Ce³⁺-doped LuAG Garnet material: A comparative study of bulky single-crystal and nanoscalle powder
AU - Ahmed Rafik Touil
AU - Lakhdar Guerbous
AU - Mourad Derbal
AU - Zohra Akhrib
AU - Kheirreddine Lebbou
PY - 2026
DA - 2026/11/01
JO - Ceramics International
DO - 10.1016/j.ceramint.2025.07.240
UR - https://hal.science/hal-05847259v1
AB - The emission and excitation spectra, associated with the 5d-4f transitions of Ce³⁺, particularly in garnet-type materials, have garnered significant attention for their applications in WLEDs and scintillations. In this paper, we present a comparative study of the luminescence spectroscopy of LuAG: Ce³⁺ garnet material in single-crystal (bulk) form and in its nanometric-scale counterpart. The samples were prepared by Czochralski (Cz) and sol gel methods. The temperature dependence of photoluminescence spectra of LuAG: Ce 3+ is reported and detailed investigations of PL features in term of the thermal quenching phenomena, thermal stability, band shape and position has been performed. Furthermore, the electron-vibration interaction (EVI) involved in the 4f-5d optical transitions of LuAG:Ce³⁺ was investigated by estimating the parameters such as the Stokes shift, zero-phonon line (ZPL), Huang-Rhys factor (S), and effective phonon energy (ħω), alongside a comparative analysis between the single crystal and its nanoscale counterpart. In this paper, it has been shown that using of the Mcumber and Sturag relationship led us to predict values of Debye temperature with good agreement with experimental measurement. The possibility of the use of LuAG SC and NCs as luminescence thermometer is also investigated.
SN - 0272-8842
ER -