期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 25, 期 68, 页码 15441-15454出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201903252
关键词
charge transfer; circularly polarized luminescence switching; conformations; electronic structures; excimer formation
资金
- National Natural Science Foundation of China [21572120, 21971150, 24173214]
- strategic Priority Research Program of the Chinese Academy
The circularly polarized luminescence (CPL) switching is of significant interest for applications in security technologies and sensing devices. Small organic molecules (SOMs) show several advantages over metal complexes, supramolecular assemblies, and polymers. Therefore, the recent progress on the CPL switching in SOMs is here reviewed. The results are summarized based on the strategies used to tune factors that influence the emission properties, and thus, to realize CPL switching. The strategies that have been adopted include promoting the excimer formation of fluorescent units, changing the conformation of fluorophores, tuning the electronic structure of the pi-skeleton/substituent, and modulating the intramolecular charge-transfer dynamics.
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