Direct current electroluminescence and spectral intensity in erbium-doped zinc sulphide thin films
Direct current electroluminescence and spectral intensity in erbium-doped zinc sulphide thin films
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DOI：
10.1016/0022-2313(81)90117-4
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发表时间：
1981-11
影响因子：
3.6
通讯作者：
Tao Zhang
中科院分区：
文献类型：
--
作者：
Tao Zhang
用一种简单的同时共蒸发技术制备了掺Er的硫化锌薄膜，获得了良好的DCEL。对于Er~(3+)离子从激发态到4I~(15/2)基态的跃迁，对振子强度的理论计算与由DCEL光谱强度观测得到的实验结果进行了比较。实验和理论之间的良好一致性进一步支持了以前的一个发现，即在稀土硫化锌薄膜中，激发DCEL的热电子遵循玻尔兹曼分布。
A simple technique of simultaneous co-evaporation has been used to form thin films of Er-doped ZnS which give good DCEL. For transitions from excited states to the4I15/2ground state of the Er3+ion theoretical calculations of oscillator strengths have been compared with those determined experimentally from observations of spectral intensities of DCEL. The good agreement noted between experiment and theory gives further support for a previous finding that in rare-earth ZnS thin films the hot electrons exciting DCEL follow a Boltzmann distribution.