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溶剂热法制备NaBiF4:Yb3+/Er3+及掺杂Rb+离子增强其上转换荧光
作者:  王友法 
单位:(武汉理工大学 材料复合新技术国家重点实验室 武汉 430070) 
关键词:四氟铋钠 溶剂热法 上转换发光 铷离子掺杂 温度传感 
分类号:TB32 1
出版年,卷(期):页码:2020,48(1):0-0
DOI:
摘要:

 采用溶剂热法合成了NaBiF4:Yb3+/Er3+上转换发光纳米材料,讨论了在溶剂热阶段反应温度、反应时间对NaBiF4:Yb3+/Er3+物相组成、形貌及发光性能的影响。结果表明:在反应阶段,适当增加反应温度、延长反应时间,可以增强NaBiF4:Yb3+/Er3+的结晶度,进而提高上转换发光效率,但溶剂热阶段反应温度高于220 ℃时,容易生成金属铋。此外,通过Rb+离子掺杂可进一步增强NaBiF4:Yb3+/Er3+的上转换发光强度。Rb+掺杂量为5%(摩尔分数)时,绿光和红光分别增加至原来的1.73和1.5倍。最后基于荧光强度比(IFIR)技术,研究了样品在300~500 K温度范围的IFIR变化曲线,结果表明:NaBiF4:Yb3+/Er3+样品在温度传感领域有潜在应用价值。

基金项目:
武汉市科技攻关项目(2017060201010191);国家自然科学基金(51772233);国家重点研究发展计划(2018YFB110550,2017YFC1103800,2016YFC1101605)项目。
作者简介:
参考文献:

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