Long‐Range Charge Transportation Induced Organic Host–Guest Dual Color Long Persistent Luminescence

• DOI: 10.1002/adom.202101337
• Publication Date: 2021-09-23T17:09:25Z
• Authors: Guanheng Huang; Ziqi Deng; Junhong Pang; Jinghong Li; Shaofei Ni; Jian‐An Li; Chen Zhou; Hailin Li; Bingjia Xu; Li Dang; Ming‐De Li
• Keywords: Persistent luminescence

Abstract Long persistent luminescence (LPL) can store light energy in excited states and gradually release it as light. Organic host–guest systems provide a good platform for LPL, single‐color LPL is often achieved while multicolor challengeable. Here supramolecular complexes are presented with dual emissions: thermally activated delayed fluorescence (TADF) (≥100 ms) room temperature phosphorescence (RTP). A space charge transfer from α‐cyclodextrin to diphenylacetylene (DPA) long‐range transportation (2.32 mm) carrier along DPA strand the attributed generate TADF RTP. Fortunately, these readily fabricated or derivatives. The gradient color observed after removing UV excitation. Furthermore, hydrophobic property inside makes appear by water shedding disappear organic solvent infiltration, showing character of “switch.” This strategy paves way design materials.