In this work, we demonstrate and evaluate the viability of SrAl2O4:Eu[Formula: see text], Dy[Formula: see text] crystals for long-term light storage applications at low temperatures that can be activated at higher temperatures for on-demand lighting applications. The switching mechanism is discussed from the point of view of the possible interplay between charge transport and the persistent luminescence in this system. Step-wise temperature-dependent luminescence decay time measurement is carried out to determine the optimal temperature for photo-charging and the operational temperature limit of the crystal-under-test as light sources.

中文翻译：

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SrAl2O4:Eu2+、Dy3+的光存储和热辅助切换

在这项工作中，我们展示和评估了 SrAl 的可行性2○4:Eu[公式：见正文]、Dy[公式：见正文] 用于低温下长期光存储应用的晶体，可在较高温度下激活，用于按需照明应用。从电荷传输和该系统中持续发光之间可能的相互作用的角度讨论了切换机制。逐步进行温度相关的发光衰减时间测量以确定光充电的最佳温度和作为光源的被测晶体的工作温度限制。