Abstract
Abstract
The 0.1% Ag-doped ZnO translucent ceramic was synthesized by spark plasma sintering and annealed at 700 °C and 800 °C in the air for 24 h. Photoluminescence (PL) quantum yields (QYs) and scintillation light yields (LYs) of the annealed ceramics were increased as compared with the as-prepared ceramic because the annealing reduced self-absorption due to oxygen vacancies. The ceramic annealed at 700 °C indicated the highest LY (7000 ph/5.5 MeV-α) among the present samples owing to the increase of the PL QY and energy-transfer efficiency from the host to the luminescence centers. In the ceramic annealed at 800 °C, scintillation LYs decreased due to the increment of the number of trap sites.
Funder
Japan Society for the Promotion of Science
Cooperative Research Project of Research Center for Biomedical Engineering
TEPCO Memorial Foundation
Nakatani Foundation for Advancement of Measuring Technologies in Biomedical Engineering
Kansai Research Foundation for Technology Promotion
Subject
General Physics and Astronomy,Physics and Astronomy (miscellaneous),General Engineering
Cited by
6 articles.
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