| 基于NaYF_4:Yb~(3+),Er~(3+)上转换发光材料的色彩设计 |
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| 引用本文： | 任琪,代如成,沈宇华,张增明. 基于NaYF_4:Yb~(3+),Er~(3+)上转换发光材料的色彩设计[J]. 发光学报, 2010, 31(1): 69-74 |
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| 作者姓名： | 任琪 代如成 沈宇华 张增明 |
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| 作者单位： | 中国科学技术大学,少年班学院,安徽,合肥,230026;中国科学技术大学,物理系,安徽,合肥,230026;中国科学技术大学,物理实验教学中心,安徽,合肥,230026 |
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| 基金项目： | 国家自然科学基金(10874160);;中国科学技术大学教改(0605);;教育部“博士生访学计划”同步辐射研究创新基金(20080152S)资助项目 |
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| 摘 要： | 采用共沉淀法制备β-NaYF4:Yb3+,Er3+。X射线衍射图谱结果表明退火有利于β相生长。样品在970nm处有一强烈吸收峰,利用980nm激光激发样品,实现红、绿、蓝三色上转换发光;其中蓝光相对较弱,红、绿光的发射峰分别为521,539,659nm。速率方程表明红、绿发射对应跃迁均是双光子过程,实验结果与理论分析相符。此外,对红、绿发射带面积比的研究表明激发功率和Yb3+掺杂量影响发光颜色;进而可实现简便的色彩设计。
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| 关 键 词： | 上转换 Er~(3+)/Yb~(3+)共掺杂 色彩设计 |
| 收稿时间： | 2009-07-28 |
Color Design Based on Upconversion Luminescence of NaYF4 : Yb3+, Er3+ |
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| REN Qi,DAI Ru-cheng,SHEN Yu-hua,ZHANG Zeng-ming. Color Design Based on Upconversion Luminescence of NaYF4 : Yb3+, Er3+[J]. Chinese Journal of Luminescence, 2010, 31(1): 69-74 |
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| Authors: | REN Qi DAI Ru-cheng SHEN Yu-hua ZHANG Zeng-ming |
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| Affiliation: | 1. School for the Gifted Young, University of Science and Technology of China, Hefei 230026, China;2. Department of Physics, University of Science and Technology of China, Hefei 230026, China;3. The Center of Physical Experiments, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | Upconversion luminescence is one of the most efficient progress for the generation of visible radiation by near-infrared (NIR) excitation.A lot of studying works indicated,that,under 980 nm excitation,Yb3 + /Er3 + and Yb3 + /Tm3 + co-doped NaYF4 materials are well-known because of the highest upconversion efficiency so far.Due to the feature of NIR excitation,frequency upconversion materials would have wide and potential application in light emitting displays,multiplexed biological labeling,short-wavelength... |
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| Keywords: | upconversion Yb3 + /Er3 + co-dopping emission color modulation |
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