Absorption and photoluminescence of Eu<sup>2+sup>-doped 1-D CsCdBr<sub>3sub> single crystal

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• 作者：S. Garc&#xed ; a-Revilla ; F. Rodr&#xed ; guez ; R. Valiente
• 关键词：Divalent lanthanides ; Eu<sup>2+sup> ; CsCdBr<sub>3sub> ; Exciton
• 刊名：Journal of Luminescence
• 出版年：2008
• 期刊代码：54_00222313
• 类别：ch
• 出版时间：May-June 2008
• 卷：128
• 期：5-6
• 页码：937-940
• 文件大小：178 K

摘要

Eu<sup>2+sup>-doped CsCdBr<sub>3sub> single crystals are studied by polarized variable-temperature optical absorption and luminescence spectroscopy for different excitation wavelengths. Whereas the low-energy absorption band is assigned to f→d transitions within Eu<sup>2+sup> electronic configuration, the high-energy absorption bands are assigned to Eu-trapped exciton due to the proximity of the high-energy d levels to the conduction band.