TY - JOUR
T1 - Electronic states of trivalent praseodymium ion doped in 20Al(PO 3)3-80LiF glass
AU - Tsuboi, Mizuki
AU - Takeda, Kohei
AU - Nakazato, Tomoharu
AU - Kono, Masahiro
AU - Yamanoi, Kohei
AU - Cadatal-Raduban, Marilou
AU - Sakai, Kohei
AU - Nishi, Ryosuke
AU - Minami, Yuki
AU - Luong, Mui Viet
AU - Arikawa, Yasunobu
AU - Shimizu, Toshihiko
AU - Sarukurua, Nobuhiko
AU - Norimatsu, Takayoshi
AU - Nakai, Mitsuo
AU - Azechi, Hiroshi
AU - Murata, Takahiro
AU - Fujino, Shigeru
AU - Yoshida, Hideki
AU - Yoshikawa, Akira
AU - Sato, Nakahiro
AU - Kan, Hirofumi
AU - Kamata, Kei
PY - 2013/6
Y1 - 2013/6
N2 - We investigate the photoluminescence (PL) and photoluminescence excitation (PLE) spectra of 20Al(PO3)3-80LiF+Pr glass (APLF+Pr) and Pr3+-doped LiCaAlF6 crystal (Pr:LiCAF) in order to determine the electronic states of Pr3+ in APLF glass host and to improve APLF+Pr scintillation properties. Ultraviolet (UV) emission bands at around 250 and 340 nm were observed from both materials and these can be ascribed to 4f5d → 4f2 transitions in Pr3+. Emission at around 400 nm was also obtained and is principally attributed to 1S0 → 4f2 transition. Difference in the emission profiles of these two materials was found to be due to the extent of the 5d band and its position relative to the 1S0 state. Increasing the concentration of Pr3+ up to 2 mol% was found to improve UV emission ratio due to the faster cross-relaxation of 4f states. This could improve the quantum efficiency of APLF+Pr as a neutron scintillator for scattered-neutron diagnostics in laser fusion research.
AB - We investigate the photoluminescence (PL) and photoluminescence excitation (PLE) spectra of 20Al(PO3)3-80LiF+Pr glass (APLF+Pr) and Pr3+-doped LiCaAlF6 crystal (Pr:LiCAF) in order to determine the electronic states of Pr3+ in APLF glass host and to improve APLF+Pr scintillation properties. Ultraviolet (UV) emission bands at around 250 and 340 nm were observed from both materials and these can be ascribed to 4f5d → 4f2 transitions in Pr3+. Emission at around 400 nm was also obtained and is principally attributed to 1S0 → 4f2 transition. Difference in the emission profiles of these two materials was found to be due to the extent of the 5d band and its position relative to the 1S0 state. Increasing the concentration of Pr3+ up to 2 mol% was found to improve UV emission ratio due to the faster cross-relaxation of 4f states. This could improve the quantum efficiency of APLF+Pr as a neutron scintillator for scattered-neutron diagnostics in laser fusion research.
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U2 - 10.7567/JJAP.52.062402
DO - 10.7567/JJAP.52.062402
M3 - Article
AN - SCOPUS:84881063134
SN - 0021-4922
VL - 52
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - 6 PART 1
M1 - 062402
ER -