Micellar carrier for triplet–triplet annihilation-assisted photon energy upconversion in a water environment
Micellar carrier for triplet–triplet annihilation-assisted photon energy upconversion in a water environment
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DOI：
10.1088/1367-2630/13/8/083035
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发表时间：
2011-08
影响因子：
3.3
通讯作者：
A. Turshatov;D. Busko;S. Baluschev;T. Miteva;K. Landfester
中科院分区：
文献类型：
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作者：
A. Turshatov;D. Busko;S. Baluschev;T. Miteva;K. Landfester
在本文中，我们展示了在水环境中工作的能量相连的三重态-三重态湮灭辅助光子能量上转换（UC）。所获得的胶束结构在水环境中在极低的激发光强度（低至10 mW cm-2）下显示出非常有效的UC发射。所展示的UC发射的亚线性强度依赖性对于生命科学应用至关重要，允许即使在低强度下也能产生上转换光子，然后作为后续光触发过程的局部原位光激发源。
In this paper, we demonstrate energetically conjoined triplet–triplet annihilation-assisted photon energy upconversion (UC) operating in an aqueous environment. Obtained micellar structures show very efficient UC emission in a water environment under extremely low excitation light intensity, down to 10 mW cm−2. The demonstrated sub-linear intensity dependence of the UC emission is of crucial importance for life science applications, allowing upconverted photons to be generated even at low intensity that then serve as a local, in situ, optical excitation source for subsequent light-triggered processes.