Energy Recovery from Lu_2O_3:Tb,Hf Ceramic Storage Phosphors

摘要

Lu_2O_3: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 Tb~(3+) ions.