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Effect of corroded SiO2 on the luminescent properties of La2MoO6:Eu3+ phosphors
Journal of Luminescence ( IF 3.6 ) Pub Date : 2021-07-14 , DOI: 10.1016/j.jlumin.2021.118342
Rong Wang 1 , Yun Liu 2 , Yi Zhu 1
Affiliation  

A kind of novel composite nanophosphor consisting of corroded SiO2 and La2MoO6:0.14Eu3+ (abbreviated as LMO:0.14Eu3+) had been successfully synthesized by hydrothermal approach followed by calcination. The mic-morphology of the composite material was observed by FE-SEM. The positive effect of corroded SiO2 on the luminescence performance of phosphor had been studied in detail. The SiO2 corroded by different concentrations of NaOH changed the diffuse reflection path of excitation light and the stacked structure of nanophosphor. Under the excitation of 465 nm, the excitation light was more continuously scattered in SiO2-LMO:0.14Eu3+ nanophosphor than in LMO:0.14Eu3+ nanophosphor, which caused more activator ions Eu3+ were successfully activated to enhance the luminescence intensity and color purity. The results suggest that adding corroded SiO2 to improve optical conversion properties of phosphors might become a relatively effective method.



中文翻译:

腐蚀的SiO 2对La 2 MoO 6 :Eu 3+荧光粉发光性能的影响

采用水热法和煅烧法成功合成了一种由腐蚀后的SiO 2和La 2 MoO 6 :0.14Eu 3+组成的新型复合纳米磷光体(简称LMO:0.14Eu 3+)。通过FE-SEM观察复合材料的微观形貌。详细研究了腐蚀后的SiO 2对荧光粉发光性能的积极影响。不同浓度NaOH腐蚀的SiO 2改变了激发光的漫反射路径和纳米荧光粉的堆叠结构。在465 nm激发下,激发光在SiO 2 -LMO:0.14Eu中散射更连续3+纳米磷光体比在 LMO 中:0.14Eu 3+纳米磷光体,这导致更多的活化剂离子 Eu 3+被成功地活化,以提高发光强度和色纯度。结果表明,添加腐蚀的SiO 2以提高荧光粉的光学转换性能可能成为一种相对有效的方法。

更新日期:2021-07-16
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