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吉林大学电子科学与工程学院 集成光电子国家重点联合实验室, 吉林 长春 130012
收稿:2011-05-30,
修回:2011-6-15,
网络首发:2011-09-22,
纸质出版:2011-09-22
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陈喆, 刘真育, 赵丹, 秦伟平. 反应物浓度对NaYF<sub>4</sub>: Yb<sup>3+</sup>,Tm<sup>3+</sup>晶相的影响[J]. 发光学报, 2011,32(9): 853-857
CHEN Zhe, LIU Zhen-yu, ZHAO Dan, QIN Wei-ping. Effect of Reactants Concentration on NaYF<sub>4</sub>:Yb<sup>3+</sup>,Tm<sup>3+</sup> Crystalline Phase[J]. Chinese Journal of Luminescence, 2011,32(9): 853-857
陈喆, 刘真育, 赵丹, 秦伟平. 反应物浓度对NaYF<sub>4</sub>: Yb<sup>3+</sup>,Tm<sup>3+</sup>晶相的影响[J]. 发光学报, 2011,32(9): 853-857 DOI:
CHEN Zhe, LIU Zhen-yu, ZHAO Dan, QIN Wei-ping. Effect of Reactants Concentration on NaYF<sub>4</sub>:Yb<sup>3+</sup>,Tm<sup>3+</sup> Crystalline Phase[J]. Chinese Journal of Luminescence, 2011,32(9): 853-857 DOI:
利用水热法
制备了具有不同形貌的NaYF
4
:20%Yb
3+
1%Tm
3+
上转换发光粒子。利用扫描电子显微镜、X射线衍射分析、发光光谱测量等手段对样品进行了形貌、晶相和发光性质的表征。结果表明
通过调控反应物的浓度
可以实现NaYF
4
基质从立方相到六角相的晶相转变。在980 nm红外光的激发下
六角相的NaYF
4
:20%Yb
3+
1%Tm
3+
上转换发光粒子发出蓝紫色可见光。通过分析反应物浓度对产物晶相的影响
为制备晶相可控的上转换发光材料提供了新的实验依据。
paper
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