期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 139, 期 29, 页码 9783-9786出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b04611
关键词
-
资金
- Basic Research Development Program [2016YFA0203400, 2013CB834504]
- National Natural Science Foundation of China [51673050, 91427302]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB12020200]
- New Hundred-Talent Program research fund from the Chinese Academy of Sciences
Amplification of circularly polarized luminescence (CPL) is demonstrated in a triplet triplet annihilation-based photon upconversion (TTA-UC) system. When chiral binaphthyldiamine acceptors are sensitized with an achiral Pt(II) octaethylporphine (PtOEP) in solution, upconverted circularly polarized luminescence (UC-CPL) were observed for the first time, in which the positive or negative circularly polarized emission could be obtained respectively, following the molecular chirality of the acceptors (R/S). More interestingly, one order of magnitude amplification of the dissymmetry factor g(lum) in UC-CPL was obtained in comparison with the normal promoted CPL. The multistep photophysical process of TTA-UC including triplet-triplet energy transfer (TTET) and triplet-triplet annihilation (TTA) have been suggested to enhance the UC-CPL, which provided a new strategy to design CPL materials with a higher dissymmetry factor.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据