| Gd~(3+)掺杂浓度对NaErF_4∶Yb纳米晶上转换荧光性能的影响 |
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| 引用本文： | 谢婉莹,安西涛,酒俊霞,李静,冷静,陈力. Gd~(3+)掺杂浓度对NaErF_4∶Yb纳米晶上转换荧光性能的影响[J]. 发光学报, 2017, 38(3): 281-287. DOI: 10.3788/fgxb20173803.0281 |
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| 作者姓名： | 谢婉莹 安西涛 酒俊霞 李静 冷静 陈力 |
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| 作者单位： | 1. 长春工业大学 化学工程学院, 吉林 长春 130012;2. 长春工业大学 材料科学高等研究院, 吉林 长春 130012;3. 长春工业大学 化学与生命科学学院, 吉林 长春 130012;4. 长春工业大学 基础科学学院, 吉林 长春 130012 |
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| 基金项目： | 国家自然科学基金，吉林省教育厅2015科研规划，吉林省科技厅团队项目，吉林省科技厅项目，长春市科技局项目(14KG108)资助 Supported by National Natural Science Foundation of China，2015 Research Plan of Jilin Provincial Education Department，Team Project of Jilin Provincial Science Technology Department，Project of Jilin Provincial Science and Technology Department，Project of Changchun Science and Technology Bureau |
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| 摘 要： | 采用温和的溶剂热法制备较强红光发射的NaErF4∶Yb,Gd上转换纳米晶,控制Gd~(3+)的掺杂浓度实现了晶相和尺寸可控以及上转换荧光的增强。X射线衍射谱(XRD)、透射电子显微镜图像(TEM)和上转换发射光谱结果分析表明,Gd~(3+)掺杂可以有效地促进NaErF_4纳米晶的晶相由立方相向六角相转变,并且减小纳米粒子的尺寸。随着Gd~(3+)掺杂浓度的上升,上转换荧光强度明显增大。当Gd~(3+)摩尔分数为25%时,样品的上转换荧光强度达到最大。同时,研究了在980 nm近红外激光激发下,Yb~(3+)与Er~(3+)间有效的能量传递以及上转换发光机制。
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| 关 键 词： | NaErF4 Gd3+共掺杂 上转换发光 |
| 收稿时间： | 2016-09-03 |
Influence of Gd3+ Doping on The Luminescence Properties of Upconverting NaErF4:Yb Nanocrystals |
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| XIE Wan-ying,AN Xi-tao,JIU Jun-xia,LI Jing,LENG Jing,CHEN Li. Influence of Gd3+ Doping on The Luminescence Properties of Upconverting NaErF4:Yb Nanocrystals[J]. Chinese Journal of Luminescence, 2017, 38(3): 281-287. DOI: 10.3788/fgxb20173803.0281 |
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| Authors: | XIE Wan-ying AN Xi-tao JIU Jun-xia LI Jing LENG Jing CHEN Li |
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| Affiliation: | 1. School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China;2. Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, China;3. School of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, China;4. School of Basic Sciences, Changchun University of Technology, Changchun 130012, China |
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| Abstract: | Upconversion NaErF4:Yb,Gd nanocrystals with bright red emissions were prepared via a facile solvothermal method.The crystalline phase,size and the relative intensity of upconversion luminescence can be simultaneously manipulated by adjusting Gd3+ ions contents.The introduction of Gd3+ can effectively promote the cubic to hexagonal phase transformation,size reduction and obviously upconversion luminescence (UCL) intensity improvement of NaErF4:Yb,Gd nanocrystals.XRD,TEM and UCL spectra results reveal that the sample co-doped with 25% Gd3+ ions (mole fraction) of NaErF4:Yb system exhibits the optimized structural and optical properties.Meanwhile,the mechanism involving upconverting photon excitation and energy transfer between Yb3+ ions and Er3+ ions were investigated under the excitation of 980 nm diode laser. |
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| Keywords: | NaErF4 Gd3+ doping upconversion luminescence |
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