二氧化甲染色体:用于低功耗升级改造方案的下一代三重接收器/消灭器
Tanya N Singh-Rachford1, Alexandre Haefele, Raymond Ziessel
1Department of Chemistry and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, USA.
Journal of the American Chemical Society
|November 13, 2008
概括
这项研究证明了高效的光子上转换使用(II) 四乙烯四二 (PtTPBP) 作为新型BODIPY衍生物的敏感剂. 这些系统实现了稳定的绿色和黄色光辐射,这是非芳香碳化合物接受器的首次.
科学领域:
- 摄影化学的使用.
- 材料科学 材料科学 材料科学
- 有机化学 有机化学
背景情况:
- 光子上升转换 (UC) 能够将低能光子转换为高能光子.
- 三倍三倍灭绝 (TTA) 是UC的一个关键机制,通常使用芳.
- 开发新的接受器/消灭器系统对于推进UC技术至关重要.
研究的目的:
- 为了研究光子向上转换,使用新的BODIPY衍生物作为三重接收器/消灭器.
- 探索 (II) 四乙烯四二 (PtTPBP) 作为红光吸收三重敏感剂的使用.
- 为了证明UC系统,芳香碳化合物不是主要的三重接收器.
主要方法:
- 使用(II) 四乙烯四二烯 (PtTPBP) 作为三重敏感剂.
- 采用了两个不同的含的BODIPY衍生品作为三重接收器/消灭器.
- 在去空气的溶液中进行选择性红色激发 (635 ± 5 nm).
主要成果:
- 实现了高度稳定的绿色和黄色上转换排放,具有高量子效率 (绿色的 ΦUC = 0.0313 ± 0.0005,黄色的 ΦUC = 0.0753 ± 0.0036).
- 展示了使用非芳香碳化合物三重接收器/消灭器的光子向上转换的第一个例子.
- 启用了UC量子效率和三倍三倍灭绝量子产量的可重复性确定.
结论:
- 开发的PtTPBP-BODIPY系统对于光子上转换是有效的.
- 这些发现扩大了用于基于TTA的光子上转换的材料的范围.
- 染色体组合允许可靠的效率测量和机械学研究.
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