Cathodoluminescence
Cathodoluminescence
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阴极发光
DOI：
10.1109/jrproc.1955.278052
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发表时间：
1955
期刊：
影响因子：
--
通讯作者：
G. F. J. Garlick
中科院分区：
文献类型：
--
作者：
G. F. J. Garlick
本文综述了近年来电子激发发光机理基础知识的进展。闪烁计数器的发展、电子散射的研究以及荧光粉光致发光机理研究的进展，为建立完善的阴极射线发光理论提供了新的基础。它示出了传统屏幕的亮度-电压关系是由于磷光体的复杂微晶形式。单晶研究与电子束和单粒子激发揭示了一个更简单的行为。最终的屏幕效率被证明是强烈依赖于从荧光粉表面的散射的初级和次级电子的损失和在电子陷阱和其他nonluminescent中心的非辐射电子空穴复合。文中还讨论了电流饱和和电子燃烧问题
A review of recent advances in fundamental knowledge of the mechanism of luminescence excitation by electrons is given. The development of the scintillation counter and studies of electron scattering together with progress in the study of photo-luminescence mechanisms in phosphors have provided a new basis for establishing a sound theory of cathodoluminescence. It is shown that the brightness-voltage relations for conventional screens result from the complex microcrystalline form of the phosphor. Single crystal studies with electron beam and single particle excitation reveal a more simple behavior. Ultimate screen efficiency is shown to be strongly dependent on loss of scattered primary and secondary electrons from the phosphor surface and on nonradiative electron-hole recombination in electron traps and other nonluminescent centers. Current saturation and electron burn are also discussed