Raman spectra of RE2O3 (RE=Eu,Gd, Dy,Ho, Er,Tm, Yb,Lu, Sc and Y):laser-excited luminescence and trace impurity analysis |
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作者姓名: | YU Jinqiu CUI Lei HE Huaqiang YAN Shihong HU Yunsheng WU Hao |
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作者单位: | National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, and Grirem Advanced Materials Co., Ltd., Beijing 100088, China |
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基金项目: | Project supported by National Basic Research Program of China (2012CBA01207) |
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摘 要: | Raman spectra of a series of cubic rare earth sesquioxides RE2O3 (RE=Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, Sc and Y) were investigated by Raman spectroscopy with both 532 and 785 nm laser lines. Abundant additional bands due to laser-excited lumines-cence were observed. For Eu2O3, Dy2O3, Ho2O3, Er2O3, Tm2O3 and Yb2O3, the luminescence mainly came from the intrinsic trivalent lanthanide ions, while for Gd2O3, Lu2O3, Sc2O3 and Y2O3, their luminescence were attributed to the trace impurities of other lumines-cent lanthanide ions such as Eu3+, Nd3+and Er3+. This investigation confirmed Raman spectroscopy as a useful tool for detecting trace luminescent lanthanide impurities.
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关 键 词: | 激光激发荧光 RE2O3 拉曼光谱仪 杂质分析 氧化铕 氧化铒 氧化钆 Sc |
收稿时间: | 13 July 2013 |
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