Dynamic Ultralong Phosphorescence and Optical Waveguiding Switches in Silver‐Organic Complex via Reversible Single‐Crystal‐to‐Single‐Crystal Conversion

• Published in: Angewandte Chemie International Edition Vol. 64; no. 20; pp. e202502782 - n/a
• Main Authors: Xing, Chang, Qi, Zhenhong, Ma, Yu‐Juan, Yan, Dongpeng, Fang, Wei‐Hai
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 12.05.2025
• Edition: International ed. in English
• Subjects: Controllability; Coordination polymers; Crystals; Optical waveguides; Phosphorescence; Polymers; room-temperature phosphorescence; Silver; silver complexes; single-crystal-to-single-crystal conversion; Solvents; Stimuli; stimuli-responsive switches; optical waveguides; silver complexes; stimuli-responsive switches; single-crystal-to-single-crystal conversion; room-temperature phosphorescence
• ISSN: 1433-7851; 1521-3773; 1521-3773
• DOI: 10.1002/anie.202502782

Dynamic ultralong room‐temperature phosphorescent (RTP) materials with stimuli‐responsive properties have attracted considerable interest for applications in sensors, light‐emitting devices, and information security. Here, we introduce a novel class of silver (Ag)‐organic complexes exhibiting rare, direct ultralong RTP, achieved through the heavy‐atom effect of Ag+ ions and highly ordered assembly of coordination polymers. The Ag‐based complex displays reversible solvent‐responsive RTP, shifting from green to yellow emission in response to humidity and solvent variations. This transformation is driven by a solvent‐mediated single‐crystal‐to‐single‐crystal (SCSC) conversion, enabling color‐tunable active optical waveguides and one‐dimensional (1D) polarization switching. Therefore, this study provides a new strategy for creating dynamically controllable ultralong all‐phosphorescent metal‐organic complexes and advances the design of stimuli‐responsive 1D photonic systems for promising information encryption and anti‐counterfeiting applications. By leveraging single‐crystal‐to‐single‐crystal conversion and the heavy‐atom effect, dynamically controllable ultralong phosphorescence and color‐tunable optical waveguide can be designed within an Ag‐organic complex. This approach provides a straightforward way to expand room‐temperature phosphorescence towards intelligent switches and Information storage.