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1. 河北大学 物理科学与技术学院,河北 保定,071002
2. 航天长征火箭技术有限公司 北京,100176
3. 河北大学 工商学院,河北 保定,071002
纸质出版日期:2012-12-10,
收稿日期:2012-9-25,
修回日期:2012-10-26,
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杨艳民, 焦福运, 苏红新, 李自强, 焦金鹏, 刘云峰, 李志强. Yb<sup>3+</sup>,Er<sup>3+</sup>共掺BaGd<sub>2</sub>ZnO<sub>5</sub>材料的制备及其上转换发光效率[J]. 发光学报, 2012,33(12): 1319-1323
YANG Yan-min, JIAO Fu-yun, SU Hong-xin, LI Zi-qiang, JIAO Jin-peng, LIU Yun-feng, LI Zhi-qiang. Preparation and Up-conversion Efficiencies of Yb<sup>3+</sup>,Er<sup>3+</sup> Co-doped BaGd<sub>2</sub>ZnO<sub>5</sub>[J]. Chinese Journal of Luminescence, 2012,33(12): 1319-1323
杨艳民, 焦福运, 苏红新, 李自强, 焦金鹏, 刘云峰, 李志强. Yb<sup>3+</sup>,Er<sup>3+</sup>共掺BaGd<sub>2</sub>ZnO<sub>5</sub>材料的制备及其上转换发光效率[J]. 发光学报, 2012,33(12): 1319-1323 DOI: 10.3788/fgxb20123312.1319.
YANG Yan-min, JIAO Fu-yun, SU Hong-xin, LI Zi-qiang, JIAO Jin-peng, LIU Yun-feng, LI Zhi-qiang. Preparation and Up-conversion Efficiencies of Yb<sup>3+</sup>,Er<sup>3+</sup> Co-doped BaGd<sub>2</sub>ZnO<sub>5</sub>[J]. Chinese Journal of Luminescence, 2012,33(12): 1319-1323 DOI: 10.3788/fgxb20123312.1319.
采用溶胶-凝胶法制备了含有不同Yb
3+
Er
3+
掺杂浓度的BaGd
2
ZnO
5
上转换发光材料
测量了这些样品在不同激发光密度下的上转换光发射功率及上转换效率。实验结果表明:在不同激发光密度下
所有样品的光发射功率都存在极大值
其中Yb
3+
掺杂摩尔分数为4%
Er
3+
掺杂摩尔分数为1%时样品的最大发射光功率可达20 mW;样品的上转换绝对效率也存在极大值
随着Yb
3+
和Er
3+
浓度增加
绝对效率的极大值向较低激发光密度方向移动
在Yb
3+
掺杂摩尔分数为9%
Er
3+
掺杂摩尔分数为3%时样品的上转换效率达到最高
绝对效率为3.2%
极值效率最大值为6.9%。
BaGd
2
ZnO
5
phosphors with different doping concentrations of Yb
3+
Er
3+
were prepared by using the sol-gel method. Up-conversion fluorescence powers and efficiencies were measured under different excitation density. The obtained data show that each sample has a maximum value in emission power. Among those sample
the sample of doping Yb
3+
(4%)
Er
3+
(1%) has the highest power of 20 mW. Each sample had a maximum value of up-conversion absolute fluorescence efficiency. This value shifts to the lower exciting density with the increasing content of Yb
3+
and Er
3+
. The highest efficiency is 3.2% for Yb
3+
(9%) and Er
3+
(3%) sample
and the highest fluorescence efficiency is 6.9%。
BaGd2ZnO5上转换氧化物Yb3+Er3+
BaGd2ZnO5up-conversionoxidateYb3+Er3+
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Etchart I, Huignard A, Berard M, et al. Oxide phosphors for efficient light upconversion:Yb3+ and Er3+ co-doped Ln2BaZnO5(Ln=Y, Gd) [J]. J. Mater. Chem., 2010, 20(19):3989-3994.
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