Spectroscopic investigation of praseodymium and cerium co-doped 20Al(PO3)3-80LiF glass for potential scintillator applications

Yuki Minami (1) , Jacque Lynn Gabayno (1, 2) , Verdad Agulto (1) , Youwei Lai (1) , Melvin John F. Empizo (1) , Toshihiko Shimizu (1) , Kohei Yamanoi (1) , Nobuhiko Sarukura (1) , Akira Yoshikawa (3) , Takahiro Murata (4) , Malgorzata Guzik (5) , Yannick Guyot (6) , Georges Boulon (6) , John Harrison (7) , Marilou Cadatal-Raduban (1, 7)

1 Osaka University [Osaka]
2 Mapua University
3 Tohoku University [Sendai]
4 Kumamoto University
5 Faculty of Chemistry, Wroclaw University of Technology
6 iLM - LUMINESCENCE - iLM - Luminescence
7 Massey University

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.

Mots clés: Optical properties; Fluorophosphate glass; Rare earth ion co-doping; Ultraviolet luminescence; Optical spectroscopy

Domaines: Physique [physics]; Chimie; Sciences de l'ingénieur [physics]

Yuki Minami, Jacque Lynn Gabayno, Verdad Agulto, Youwei Lai, Melvin John F. Empizo, et al.. Spectroscopic investigation of praseodymium and cerium co-doped 20Al(PO3)3-80LiF glass for potential scintillator applications. Journal of Non-Crystalline Solids, 2019, 521, pp.119495. ⟨10.1016/j.jnoncrysol.2019.119495⟩. ⟨hal-02363638⟩