Dynamic Organic Phosphorescence Glass by Rigid-Soft Coupling

Angew Chem Int Ed Engl. 2024 Sep 20:e202415250. doi: 10.1002/anie.202415250. Online ahead of print.

Abstract

Organic phosphorescence glass has garnered considerable attention owing to the excellent shaping ability and photophysical behavior, but facile construction from single-component phosphors is still challenging. Herein, a rigid-soft coupling design is adopted in organic phosphors of ICO, CCO and PCO, thus preparing phosphorescence glasses through melting-quenching method to give excellent shaping ability and dynamic phosphorescence. RTP performance is significantly enhanced in the dense-structure glass, and intriguing high-temperature phosphorescence (HTP) is still observable even at 400 K. Direct patterning under UV irradiation is also achieved using photolithography technique, allowing for the creation of high-quality afterglow patterns that can be reversibly erased and rewritten. This rigid-soft conformation in organic phosphors elucidates a promising concept for achieving efficient RTP glass with wide application prospects.

Keywords: Dynamic phosphorescence; Organic phosphorescence glass; Rigid-soft coupling; photoactivation; room temperature phosphorescence.