Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7906414 | Optical Materials | 2018 | 8 Pages |
Abstract
Europium-doped lutetium oxide (Eu:Lu2O3) nano-powders were synthesized by a co-precipitation method from europium and lutetium nitrates using ammonium hydrogen carbonate (AHC) as the precipitant. Fine and low-agglomerated powders with average particle size of 68â¯nm were obtained by calcining the precursor at 1100â¯Â°C for 4â¯h. Using this powder as starting material, Eu:Lu2O3 transparent ceramics with the average grain size of â¼46â¯Î¼m were fabricated by vacuum sintering at 1650â¯Â°C for 30â¯h, whose in-line transmittance reaches 66.3% at 611â¯nm. The influences of air annealing on optical transmittance, decay time, spectroscopic properties, light output and thermally stimulated luminescence of Eu:Lu2O3 ceramics were investigated in detail. Based on radioluminescence spectra, the light output of the annealed Eu:Lu2O3 ceramics is 10 times higher than that of the commercially available BGO single crystal, and it indicates that transparent Eu:Lu2O3 scintillation ceramics is a promising candidate for X-ray radiation detectors.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Weifeng Xie, Jing Wang, Maoqing Cao, Zewang Hu, Yagang Feng, Xiaopu Chen, Nan Jiang, Jiawei Dai, Yun Shi, Vladimir Babin, Eva Mihóková, Martin Nikl, Jiang Li,