Structure and cathodoluminescence properties of Dy3+ and Eu3+ co-doped AlN films
Structure and cathodoluminescence properties of Dy3+ and Eu3+ co-doped AlN films
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DOI：
10.1016/j.optmat.2022.112366
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发表时间：
2022-06
影响因子：
3.9
通讯作者：
Dan Wang;Xiaodan Wang;Hai Ma;Xiaodong Gao;Jiafan Chen;Shunan Zheng;Hongmin Mao;Huajun Chen;Xionghui Zeng;Ke Xu
中科院分区：
文献类型：
--
作者：
Dan Wang;Xiaodan Wang;Hai Ma;Xiaodong Gao;Jiafan Chen;Shunan Zheng;Hongmin Mao;Huajun Chen;Xionghui Zeng;Ke Xu
采用HVPE法制备了一系列Dy ~（3+）和Eu ~（3+）离子注入AlN薄膜。研究了薄膜的晶体结构、阴极射线发光光谱、能量传递机制和色度特性。X射线衍射和拉曼散射结果表明，应力的变化趋势相似，都是先增大后减小，最后趋于饱和。阴极射线发光光谱表明，Dy ~（3+）与Eu ~（3+）之间可能存在一个能量转移过程，即电四极-四极相互作用。通过改变Eu ~（3+）对Dy ~（3+）的注入量，可以有效地控制AlN薄膜的发光颜色。
A series of Dy3+and Eu3+implanted AlN films grown by HVPE method were prepared. The crystal structure, cathodoluminescence spectra, energy transfer mechanism and chromaticity properties of films were investigated. X-ray diffraction and Raman scattering show the similar trend of stress which increases first and then decreases and saturates at last. According to the cathodoluminescence spectra, there may be an energy transfer process from Dy3+to Eu3+, which is identified to be the electric quadrupole-quadrupole interaction. Through changing the fluence of Eu3+respect to Dy3+, the luminescence color of AlN films can be effectively controlled.