6ILM - Institut Lumière Matière [Villeurbanne] (UMR5306 CNRS Université Claude Bernard Lyon 1 Domaine Scientifique de La Doua Bâtiment Kastler, 10 rue Ada Byron 69622 Villeurbanne CEDEX, Franc - France)
7Massey University (Palmerston North, Auckland (Albany), Wellington, New Zealand - New Zealand)
Abstract : The optical properties of 20Al(PO3)3–80LiF (APLF80) glass co-doped with praseodymium (Pr3+) and cerium (Ce3+) ions are explored. By co-doping the host APLF80 glass matrix with praseodymium (Pr3+) and cerium (Ce3+) ions (APLF80 + PrCe), improvement in the luminescence decay time of the 5d → 4f allowed electric dipole transition of singly-doped APLF80 + Pr under optical excitation is achieved. Both radiative and non-radiative energy transfers from Pr3+ to Ce3+ are observed. Non-radiative energy transfer leads to Pr3+ luminescence quenching resulting to faster decay times of Pr3+, especially at high Ce3+-doping concentrations. Our results present exciting prospects for APLF80 as a response time improved scintillator.
https://hal-univ-lyon1.archives-ouvertes.fr/hal-02363638
Contributor : Armelle Vidal
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Submitted on : Thursday, November 14, 2019 - 3:09:54 PM
Last modification on : Tuesday, November 19, 2019 - 2:37:31 AM
