-
研究了提拉法生长的Er3+/Yb3+:Gd3Sc2Ga3O12和Er3+:Gd3Sc2Ga3O12晶体在室温下320—1700nm范围的吸收光谱和500—750nm范围内的上转换荧光谱，同时对其上转换荧光的可能发生机制、途径以及上转换过程可能对Er3+
-
关键词:
- 光致发光 /
- 上转换 /
- Er3+:Gd3Sc2Ga3O12晶体 /
- Er3+/Yb3+:Gd3Sc2Ga3O12晶体
Er3+/Yb3+:Gd3Sc2Ga3O12 and Er3+:Gd3Sc2Ga3O12 crystals have been grown by Czochralski method. The absorption spectra from 320 to 1700nm and the up-conversion fluorescence spectra from 500 to 750nm of them were investigated at room temperature, respectively. The possible up-conversion luminescence mechanisms in Er3+/Yb3+-codoped crystals and their influences on the 2.8μm laser emission were discussed. Experimental results show that the absorption of Er3+:Gd3Sc2Ga3O12 around 966nm and its bandwidth are remarkably increased by Yb3+ sensitizing. Under 940nm excitation, the up-conversion luminescence intensity of Er3+/Yb3+:Gd3Sc2Ga3O12 is much stronger than that of Er3+:Gd3Sc2Ga3O12. It demonstrates that there exist effective energy transfer processes between Yb3+ and Er3+, and the dominant mechanism of up-conversion may be the energy transfer processes of Yb3+-Er3+ and Er3+-Er3+.-
Keywords:
- photoluminescence /
- up-conversion /
- Er3+:Gd3Sc2Ga3O12 /
- Er3+/Yb3+:Gd3Sc2Ga3O12
计量
- 文章访问数: 6529
- PDF下载量: 892
- 被引次数: 0
留言板
尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!
| 姓名 | |
|---|---|
| 邮箱 | |
| 手机号码 | |
| 标题 | |
| |
下载:
