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Inne
Monoclinic HfO2:Eu X-ray phosphor.
Autorzy
Rok wydania
2010
Czasopismo
Numer woluminu
45
Strony
493-496
DOI
https://doi.org/10.1016/j.radmeas.2009.12.017
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
HfO2 and HfO2:Eu powders were synthesized with Pechini method at temperatures in the range of 600–1500 °C. Structural, radioluminescence and photoluminescence properties of the powders were investigated. The highest light output of about 20% of the efficiency of commercial GOS:Eu was found for materials containing 0.5% of Eu and prepared at 1500 °C. The data shows, that further improvement of light output could be obtained if materials are processed at yet higher temperatures. Emission spectra indicate that Eu3+ experiences variety of symmetries of its surroundings. Undoped materials produce broad band emission peaking at 480 nm and showing a significant afterglow.
Słowa kluczowe
Hafnia, HfO2, Eu3+, Radioluminescence
Adres publiczny
http://dx.doi.org/https://doi.org/10.1016/j.radmeas.2009.12.017
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