Macrocycle γ-Cyclodextrin Confined Polymeric Chromophore Ultralong Phosphorescence Energy Transfer

Xin-Kun Ma; Qingwen Cheng; Xiaolu Zhou; Yu Liu

doi:10.1021/jacsau.3c00255

Macrocycle γ-Cyclodextrin Confined Polymeric Chromophore Ultralong Phosphorescence Energy Transfer

JACS Au. 2023 Jul 11;3(7):2036-2043. doi: 10.1021/jacsau.3c00255. eCollection 2023 Jul 24.

Authors

Xin-Kun Ma¹, Qingwen Cheng^{1

2

3}, Xiaolu Zhou¹, Yu Liu^{1

2

3}

Affiliations

¹ College of Chemistry, State Key Laboratory of Elemento Organic Chemistry, Nankai University, Tianjin 300071, P. R. China.
² Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300071, P. R. China.
³ Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, P. R. China.

Abstract

A multicolor persistent luminescence solid polymeric system based on macrocycle-confined phosphorescence energy transfer was constructed with γ-cyclodextrin (γ-CD) and poly(vinyl alcohol) modified by triphenylene derivative (TP-PVA). Attributed to the fact that macrocycles effectively suppress the aggregation of guests and form a rigid environment via coassembling with the polymer, the phosphorescence lifetime of the yielded polymeric films is prolonged from 0.22 to 5.84 s, accompanied by a visible afterglow of more than 1 min. Furthermore, upon doping with several commercial dyes, full-color afterglow emissions with a duration of more than 50 s are realized through phosphorescence energy transfer. Notably, the multicolor-emitting-afterglow materials are successfully exploited for noctilucent lighting and anticounterfeiting ink.