An outlook of rare-earth activated persistent luminescence mechanisms
来源期刊：Journal of Rare Earths2016年第3期
论文作者：韩少春 王育华 曾巍 陈文波
文章页码：245 - 250
摘 要：By studying energy transfer and persistent energy transfer properties in Eu, Mn co-doped calcium aluminate CaAl2O4, it was found that traditional persistent luminescence mechanisms had difficulty in explaining persistent energy transfer property between Eu2+ and Mn2+ ions. Based on this question, a mechanism was suggested in which vibrational energy levels were considered as a Morse potential, and trap centers were distinguished into barriers and wells. Then, this phenomenon was explained by allowing energy transfer and persistent energy transfer could have different preference to different vibrational energy levels. Properties of trap centers were also discussed by using the concept of Madelung energy.
韩少春，王育华，曾巍，陈文波
Key Laboratory for Special Function Materials and Structure Design of the Ministry of Education, School of Physical Science and Technology, Lanzhou University
摘 要：By studying energy transfer and persistent energy transfer properties in Eu, Mn co-doped calcium aluminate CaAl2O4, it was found that traditional persistent luminescence mechanisms had difficulty in explaining persistent energy transfer property between Eu2+ and Mn2+ ions. Based on this question, a mechanism was suggested in which vibrational energy levels were considered as a Morse potential, and trap centers were distinguished into barriers and wells. Then, this phenomenon was explained by allowing energy transfer and persistent energy transfer could have different preference to different vibrational energy levels. Properties of trap centers were also discussed by using the concept of Madelung energy.
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