期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 58, 期 11, 页码 3481-3485出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201812708
关键词
long persistent luminescence; metal-organic boxes; near-infrared light; supramolecular chemistry; two-photon absorption
资金
- NSFC [21771197, 21720102007, 21821003, 21573291]
- Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program [2017BT01C161]
Long persistent luminescence (LPL) materials have a unique photophysical mechanism to store light radiation energy for subsequent release. However, in comparison to the common UV source, white-light (WL) and near-infrared (NIR) excited LPL is scarce. Herein we report a metal-organic supramolecular box based on a D-pi-A-type ligand. Owing to the integrated one-photon absorption (OPA) and two-photon absorption (TPA) attributes of the ligand, the heavy-atom effect of the metal center, as well as pi-stacking and J-aggregation states in the supramolecular assembly, LPL can be triggered by all wavebands from the UV to the NIR region. This novel designed supramolecular kit to afford LPL by both OPA and TPA pathways provides potential applications in anti-counterfeiting, camouflaging, decorating, and displaying, among others.
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