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Z. Naturforsch. 2014,
69b, 165 – 170
doi:10.5560/ZNB.2014-3296
Energy Recovery from Lu2O3:Tb,Hf Ceramic Storage Phosphors
Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie Street, 50-383 Wrocław, Poland
Reprint requests to Prof. Eugeniusz Zych. Fax: +48 71 3282348. E-mail:
eugeniusz.zych@chem.uni.wroc.pl
Received November 4, 2013 / published online February 17, 2014
Lu2O3:Tb,Hf ceramics were investigated as energy storage materials. It was shown that X-rays caused a significant thermoluminescence with a main band around 250 °C at a heating rate of 4.8 °C s−1. 780 nm radiation released up to about 75% of the stored energy, while 420 nm light liberated all the stored energy in the form of green photons produced by the Tb3+ ions.
Key words: Storage Phosphors, Optically Stimulated Luminescence, Thermoluminescence, Thermal Quenching