Universal Reservior of UV, WL and NIR Light for Long Persistent Luminescence from a Metal‐Organic Supramolecular Box

Long persistent luminescence (LPL) materials have 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. Here we report a metal‐organic supramolecular box based on a D‐π‐A type ligand. Due to the integrated one‐photon absorption (OPA) and two‐photon absorption (TPA) attributes of the ligand, heavy atom effect of the metal‐center, as well as π‐stacking and J‐aggregation states in the supramolecular assembly, LPL can be triggered by all wavebands from UV, WL to NIR region for the first time. This novel designed supramolecular kit to afford LPL via both OPA and TPA pathways provides potential applications in anti‐counterfeiting, camouflaging, decorating, displaying, and so on.

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