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Gd3+掺杂对NaYF4:Yb3+,Tm3+/Er3+ 纳米材料上转换荧光性能的影响
Influence of Gd3+ Doping on The Upconversion Luminescence Properties of NaYF4:Yb3+,Tm3+/Er3+ Nanoparticles
- 发光学报 2015年36卷第1期 页码：20-26
- 作者机构：
同济大学 材料科学与工程学院 上海,201804
- 作者简介：
- 基金信息：上海市教育委员会科研创新项目(14ZZ037)();上海市科委基础研究重点项目(12JC1408500)资助()
DOI：10.3788/fgxb20153601.0020
中图分类号： O482.31纸质出版日期：2015-1-3，
收稿日期：2014-9-3，
修回日期：2014-11-19，
扫 描 看 全 文
胡荣璇, 王慧云, 郑彤等. Gd<sup>3+</sup>掺杂对NaYF<sub>4</sub>:Yb<sup>3+</sup>,Tm<sup>3+</sup>/Er<sup>3+</sup> 纳米材料上转换荧光性能的影响[J]. 发光学报, 2015,36(1): 20-26
HU Rong-xuan, WANG Hui-yun, ZHENG Tong etc. Influence of Gd<sup>3+</sup> Doping on The Upconversion Luminescence Properties of NaYF<sub>4</sub>:Yb<sup>3+</sup>,Tm<sup>3+</sup>/Er<sup>3+</sup> Nanoparticles[J]. Chinese Journal of Luminescence, 2015,36(1): 20-26
胡荣璇, 王慧云, 郑彤等. Gd<sup>3+</sup>掺杂对NaYF<sub>4</sub>:Yb<sup>3+</sup>,Tm<sup>3+</sup>/Er<sup>3+</sup> 纳米材料上转换荧光性能的影响[J]. 发光学报, 2015,36(1): 20-26 DOI： 10.3788/fgxb20153601.0020.
HU Rong-xuan, WANG Hui-yun, ZHENG Tong etc. Influence of Gd<sup>3+</sup> Doping on The Upconversion Luminescence Properties of NaYF<sub>4</sub>:Yb<sup>3+</sup>,Tm<sup>3+</sup>/Er<sup>3+</sup> Nanoparticles[J]. Chinese Journal of Luminescence, 2015,36(1): 20-26 DOI： 10.3788/fgxb20153601.0020.
摘要
利用温和的溶剂热方法合成了具有上转换发光性能的Yb
3+
-Tm
3+
和Yb
3+
-Er
3+
共掺的纳米NaYGdF
4
。在该体系中
通过调节Gd
3+
在基质中的掺杂量可以有效地控制产物的相变、尺寸以及上转换荧光性能。XRD和TEM分析结果表明
Gd
3+
的掺入在促进NaYF
4
纳米颗粒由立方相到六方相转变的同时有助于减小其尺寸。上转换光谱研究表明
在Yb
3+
-Tm
3+
和Yb
3+
-Er
3+
共掺体系中
可通过优化Gd
3+
的掺杂量来有效提高产物的上转换荧光强度。同时
通过研究Tm
3+
和Er
3+
在不同可见光波段的发光强度与泵浦功率的关系探讨了上转换发光的机制。
Abstract
A series of Yb
3+
-Tm
3+
and Yb
3+
-Er
3+
codoped NaYGdF
4
upconversion luminescent nanoparticles were prepared
via
a facile modified solvothermal method. The phase (cubic or hexagonal)
size and upconversion luminescence properties of the final products can be well controlled by adjusting Gd
3+
content. The introduction of Gd
3+
can effectively promote the hexagonal to cubic phase transformation and size reduction of NaYGdF
4
nanocrystals. The upconversion emission intensity of NaYGdF
4
:Yb
3+
Er
3+
/Tm
3+
can be improved by optimizing Gd
3+
content. Meanwhile
the upconversion mechanism was discussed by studying the excitation power dependent visible emission intensity of Tm
3+
and Er
3+
in different wavelength regions.
关键词
上转换发光稀土掺杂NaYGdF4
Keywords
upconversion luminescencerare earth ionsNaYGdF4
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