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ZnS:Cu,X(X=Cl,Br,I) ACEL荧光粉的性质主要决定于Cu发光中心的电子发光复合、ZnS点阵中电子的注入效率、诱捕电子和逃逸电子的比率。热致发光中的电子陷阱依赖于掺杂剂以及荧光粉制备方法。文章描述了ACEL荧光粉的退火过程对其电致发光性质的深远影响。从热释光发光曲线上,我们可以看到烧结条件对电子陷阱特征的作用。由于荧光粉的ACEL性质与电子陷阱有关,为了提高荧光粉的性能,对电子陷阱的成因和所起的作用的了解就显得尤为重要。
The properties of ZnS: Cu, X (X = Cl, Br, I) ACEL phosphors mainly depend on the luminescent recombination of Cu centers, the electron injection efficiency of ZnS lattice, the ratio of trapping electrons to escaping electrons. The electron traps in thermoluminescence rely on dopants and phosphor preparation methods. The article describes the far-reaching impact of the annealing process on the electroluminescent properties of ACEL phosphors. From the luminescence curve, we can see the effect of sintering conditions on the characteristics of electron traps. Since the ACEL properties of phosphors are related to electron traps, it is particularly important to understand the causes and effects of electron traps in order to improve the performance of phosphors.