Issue 29, 2025

Multi-color-tunable ultra-long room temperature phosphorescence based on cyclodextrin metal–organic frameworks

Abstract

A series of multi-color persistent phosphorescent crystalline materials were constructed using the inherently green, heavy atom-free γ-cyclodextrin metal–organic frameworks through guest encapsulation. Owing to the macrocycles effectively suppressing guest aggregation and forming rigid environments via potassium ion assembly, the material exhibits a lifetime and phosphorescence quantum yield of 553 ms and 8.19%, respectively. Furthermore, upon encapsulation with commercial dyes such as sodium fluorescein and rhodamine B, full-color afterglow emissions were achieved through phosphorescence energy transfer. This work provides a universal method for designing and preparing environmentally friendly phosphorescent materials, overcoming the inherent limitations of degradation and recyclability in organic room-temperature phosphorescent compounds.

Graphical abstract: Multi-color-tunable ultra-long room temperature phosphorescence based on cyclodextrin metal–organic frameworks

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Article information

Article type
Paper
Submitted
01 Apr 2025
Accepted
04 Jun 2025
First published
06 Jun 2025

Green Chem., 2025,27, 8875-8882

Multi-color-tunable ultra-long room temperature phosphorescence based on cyclodextrin metal–organic frameworks

J. Zhang, J. Tang, Y. Zhang, Y. Chen and J. Gong, Green Chem., 2025, 27, 8875 DOI: 10.1039/D5GC01603G

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