pp. 473-479
S&M3534 Research Paper of Special Issue https://doi.org/10.18494/SAM4758 Published: February 20, 2024 Photoluminescence and Scintillation Properties of Eu:CaHfO3 Single Crystals [PDF] Yusuke Endo, Kensei Ichiba, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, and Takayuki Yanagida (Received October 20, 2023; Accepted January 23, 2024) Keywords: scintillator, radiation detector, photoluminescence, CaHfO3
Eu:CaHfO3 single crystals with various Eu concentrations were synthesized by the floating zone method, and their photoluminescence (PL) and scintillation properties were investigated. All the samples showed PL peaks at 590, 620, and 650 nm, which were due to the 4f-4f transitions of Eu3+. The PL quantum yield of 1.0% Eu:CaHfO3 was the highest at 42.2% among the samples. The X-ray-induced scintillation spectra showed several emission peaks in the range of 400–690 nm, and the emissions were attributed to the 4f-4f transitions of Eu3+. Among the samples, 0.05% Eu:CaHfO3 showed the highest intensity. In the afterglow curves, the levels were within the range of 1,000–10,000 ppm and those of previous studies.
Corresponding author: Yusuke EndoThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Yusuke Endo, Kensei Ichiba, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, and Takayuki Yanagida, Photoluminescence and Scintillation Properties of Eu:CaHfO3 Single Crystals, Sens. Mater., Vol. 36, No. 2, 2024, p. 473-479. |