Scintillating ceramics based on non-stoichiometric strontium hafnate
| Autor: | M. Nikl, Alena Beitlerova, P. Bohacek, Petr Brůža, J. Pejchal, Akira Yoshikawa, V. Jarý, Shunsuke Kurosawa, Dalibor Pánek, Bohumil Trunda |
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| Rok vydání: | 2018 |
| Předmět: |
Scintillation
Materials science Annealing (metallurgy) Organic Chemistry Analytical chemistry Spark plasma sintering 02 engineering and technology Radioluminescence 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials Inorganic Chemistry visual_art visual_art.visual_art_medium Photoluminescence excitation Ceramic Electrical and Electronic Engineering Physical and Theoretical Chemistry 0210 nano-technology Spectroscopy Luminescence |
| Zdroj: | Optical Materials. 77:246-252 |
| ISSN: | 0925-3467 |
| DOI: | 10.1016/j.optmat.2018.01.042 |
| Popis: | A set of non-stoichiometric strontium-hafnate ceramic samples was synthesized by the spark plasma sintering technique from powder precursors of optimized composition. The scintillation and optical properties of ceramic samples were investigated by means of time-resolved luminescence spectroscopy. We measured radioluminescence, photoluminescence excitation and emission spectra as well as luminescence decays excited by UV and soft X-rays, respectively. Multiple annealing was employed to optimize ceramic performance. Furthermore, optical properties of powder and ceramic sample of the same composition were compared. Application potential of studied ceramics in superfast imaging applications is discussed as well. |
| Databáze: | OpenAIRE |
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