Abstract
We investigate the spectra and scintillation properties of
Ce:YAlO<sub>3</sub>, Ce:Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>, and
Ce:LaAlO<sub>3</sub>. For Ce:YAlO<sub>3</sub>, the excitation spectrum is very
similar with the absorption spectrum; for
Ce:Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub> and Ce:LaAlO<sub>3</sub>, the
excitation spectra are different from the absorption spectra. Further,
Ce:YAlO<sub>3</sub> has better scintillation performance than
Ce:Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>; whereas Ce:LaAlO<sub>3</sub> has
not demonstrated scintillation performance to date. We also provide reasonable
explanations for these experimental phenomena from the viewpoint of energy level
structure.
© 2012 Chinese Optics Letters
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