Yb3+-诱导1D协调聚合物中的明亮合体向上转换发光
Ming-Xuan Zhang1, Tao Jia1, Pei-Ming Cheng1
1Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surface and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
Angewandte Chemie (International ed. in English)
|February 27, 2025
概括
在协调聚合物 (CP) 中首次实现了兰他尼德离子诱导的连接体上转换发光 (UCL). 化物协调聚合物 (Ln-CPs) 的这一突破为UCL材料开发开辟了新的途径.
科学领域:
- 材料科学 材料科学 材料科学
- 无机化学 无机化学
- 发光的光度是非常的低.
背景情况:
- 传统的有机上转换发光 (UCL) 机制具有固有的局限性.
- 在化物协调聚合物 (Ln-CPs) 中对UCL的研究主要集中在化物离子 (Ln3+) 本身的发光上.
- 在Ln-CPs中Ln3+诱导的连接体UCL仍然是一个尚未探索的领域.
研究的目的:
- 在协调聚合物中研究和实现化离子诱导的连接体UCL.
- 探索 Yb3+ 化 Ln-CPs 在新型 UCL 应用中的潜力.
主要方法:
- 合成Yb3+合的1D链Ln-CPs,其公式为[Y2−2xYb2x(FCA) 6n,其中FCA是9-二二碳酸.
- 合成材料的UCL属性的表征.
- 在不同功率密度的980nm激光激发下对联体UCL的研究.
主要成果:
- 首次在Yb3+兴奋的Ln-CP中成功实现了Ln3+诱导的联体UCL.
- 具有x=0.9 (表示为4) 的材料在10和15W cm−2激发下表现出明亮的UCL.
- 对于材料4来说,实现了0.003%的绝对上转换量子收益率 (UCQY).
结论:
- 这项研究证明了Ln3+诱导的联体UCL在Ln-CPs中的可行性.
- 开发的Yb3+兴奋剂的Ln-CPs显示出作为高效的UCL材料的希望.
- 这项工作为设计基于协调聚合物的先进UCL材料开辟了新的途径.
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