pp. 1281-1287
S&M1855 Research Paper of Special Issue https://doi.org/10.18494/SAM.2019.2188 Published: April 22, 2019 Dopant Concentration Dependence of Luminescence in Cu-doped Lithium Aluminophosphate Glasses [PDF] Daiki Shiratori, Yuya Isokawa, Noriaki Kawaguchi, and Takayuki Yanagida (Received November 29, 2018; Accepted April 2, 2019) Keywords: glass, copper, phosphate, scintillation, luminescence
We have prepared glasses with the composition of Cu-doped 30Li3PO4-70Al(PO3)3 and investigated their luminescence characteristics. The glass samples were synthesized by the melt quenching method, and the Cu concentrations of the prepared samples were 0.1, 0.2, 0.5, and 1.0%. In the absorption spectrum, the absorptions due to Cu+ and Cu2+ around 290 and 850 nm were observed, respectively. The absorption due to Cu2+ increased in proportion to the amount of Cu. In the photoluminescence (PL) decay curve, the PL decay time was a typical value of the 3d94s1–3d10 transition of Cu+ (~30 μs). The scintillation spectra showed a broad emission band from 400 to 600 nm, and the emission intensities were proportional to the Cu concentration.
Corresponding author: Daiki ShiratoriThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Daiki Shiratori, Yuya Isokawa, Noriaki Kawaguchi, and Takayuki Yanagida, Dopant Concentration Dependence of Luminescence in Cu-doped Lithium Aluminophosphate Glasses, Sens. Mater., Vol. 31, No. 4, 2019, p. 1281-1287. |