Photoluminescence and radioluminescence in Pr-doped lanthanum aluminoborate glasses
| Autor: | Hirokazu Masai, Noriaki Kawaguchi, Go Okada, Shunichi Kaneko, Takayuki Yanagida |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Photoluminescence Materials science Luminescence Praseodymium Pl spectra Doping Analytical chemistry chemistry.chemical_element Clay industries. Ceramics. Glass 02 engineering and technology Radioluminescence 021001 nanoscience & nanotechnology 01 natural sciences Stimulated luminescence TP785-869 chemistry 0103 physical sciences Ceramics and Composites Lanthanum Glass 0210 nano-technology Scintillation |
| Zdroj: | Journal of Asian Ceramic Societies, Vol 5, Iss 4, Pp 385-390 (2017) |
| ISSN: | 2187-0764 |
| Popis: | Photoluminescence (PL) and radioluminescence properties of Pr-doped lanthanum aluminoborate glasses with the composition xPr-20La2O3-30Al2O3-50B2O3 (0 ≤ x ≤ 1.0) were studied. In the PL spectra, the characteristic emission bands due to both f–f and the d–f transitions of Pr3+ were confirmed for the glass system. In X-ray induced scintillation spectra, emission from the host matrix was observed in addition to emission bands from d–f and the f–f transitions of Pr3+; the peak area ratio of the host to the f–f transition depended on the Pr content. It is significant that emission from the host was confirmed in both X-ray-induced scintillation and thermally stimulated luminescence, and the emission intensity from the host decreased with an increase in the Pr content. It is suggested that doping with Pr decreases the number of trap sites in the host glass. |
| Databáze: | OpenAIRE |
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