Temperature dependence of luminescence decay from the state of Sm3+ in Cs2NaSmxY1 − xCl6 and Cs2NaSmxEuyY1 − x − yCl6
作者： Thomas Luxbacher , Harald P. Fritzer , Colin D. Flint
DOI: 10.1016/S0022-2313(97)00097-5
关键词: Luminescence 、 Molecular electronic transition 、 State (functional analysis) 、 Excitation 、 Ion 、 Cross relaxation 、 Energy transfer 、 Atmospheric temperature range 、 Chemistry 、 Atomic physics
摘要: Luminescence decay curves for the 4G52 → 6H72 emission of Sm3+ in cubic hexachloroelpasolite crystals Cs2NaSmxY1 − xCl6 (x = 0.005–1) and Cs2NaSmxEuyY1 x yCl6 0.01–0.95, y 0.05–0.99) have been measured over temperature range 10–300 K using pulsed laser excitation into (6H52)Γ7 (4G52)Γ8 magnetic-dipole-allowed electronic transition Sm3+. The luminescence from state is strongly quenched by both cross relaxation to nearby ions energy transfer 5D0 Eu3+ acceptors. dependence discussed terms involved mechanisms.
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