Bos Adrie J J
Luminescence Materials, Faculty of Applied Sciences, Delft University of Technology, 2629JB Delft, The Netherlands.
Materials (Basel). 2017 Nov 26;10(12):1357. doi: 10.3390/ma10121357.
Thermally stimulated luminescence (TSL) is known as a technique used in radiation dosimetry and dating. However, since the luminescence is very sensitive to the defects in a solid, it can also be used in material research. In this review, it is shown how TSL can be used as a research tool to investigate luminescent characteristics and underlying luminescent mechanisms. First, some basic characteristics and a theoretical background of the phenomenon are given. Next, methods and difficulties in extracting trapping parameters are addressed. Then, the instrumentation needed to measure the luminescence, both as a function of temperature and wavelength, is described. Finally, a series of very diverse examples is given to illustrate how TSL has been used in the determination of energy levels of defects, in the research of persistent luminescence phosphors, and in phenomena like band gap engineering, tunnelling, photosynthesis, and thermal quenching. It is concluded that in the field of luminescence spectroscopy, thermally stimulated luminescence has proven to be an experimental technique with unique properties to study defects in solids.
热释光(TSL)是一种用于辐射剂量测定和年代测定的技术。然而,由于发光对固体中的缺陷非常敏感,它也可用于材料研究。在这篇综述中,展示了TSL如何用作研究工具来研究发光特性和潜在的发光机制。首先,给出了该现象的一些基本特征和理论背景。接下来,讨论了提取俘获参数的方法和困难。然后,描述了测量发光随温度和波长变化所需的仪器。最后,给出了一系列非常不同的例子,以说明TSL如何用于确定缺陷的能级、研究长余辉磷光体,以及用于带隙工程、隧穿、光合作用和热猝灭等现象。得出的结论是,在发光光谱领域,热释光已被证明是一种研究固体中缺陷的具有独特性质的实验技术。