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Inne
BaHfO3:Ce sintered ceramic scintillators.
Autorzy
Rok wydania
2010
Czasopismo
Numer woluminu
45
Strony
386-388
DOI
10.1016/j.radmeas.2009.09.014
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Raw powders of BaHfO3:Ce were prepared with modified Pechini process and were calcined in the 650–1700 °C range of temperatures, at different atmospheres – air, vacuum and nitrogen–hydrogen mixture. The powders were converted into sintered ceramics by vacuum sintering. The materials were characterized by XRD, TEM, photoluminescence and radioluminescence spectroscopy. UV-VUV excitation spectra were recorded using synchrotron radiation. Excitation spectra proved that atmosphere of preparation significantly influences the host-to-activator energy transfer, which is the most efficient for materials made in reducing conditions. Also radioluminescence efficacy was found to be superior for materials prepared in such conditions.
Słowa kluczowe
BaHfO3, Ce, luminescence, Radioluminescence
Adres publiczny
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