From Hard Crystal to Soft Fiber: Thermochromic Color‐Tunable and “On‐Off”‐Switchable Afterglow of Single‐Component Ultralong RTP Organogel DOI Open Access

Huamiao Lin,

Yi Shi, Peng Geng

et al.

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 25, 2025

Abstract Pure organic stimuli‐responsive phosphorescent materials with multi‐color afterglows, good reversibility, and ease manipulation are highly appealing for dynamic anti‐counterfeiting applications, but remain challenging to achieve. In this work, a soft organogel is rationally designed by introducing functional carbonyl (benzoyl or acetyl) units into dibenzofuran skeleton promote the intersystem crossing (ISC), screening potential organogelators through predicting self‐assembly process aid of all‐atom molecular simulation (AMDS). AMDS indicates that gelator candidates ( DBF‐Me DBF‐Ph ) can self‐assemble in mixture DMSO/H 2 O balanced π‐π intermolecular interactions between neighboring molecules, thus promoting gelation. Notably, fiber gel exhibits yellow afterglow at room temperature (298 K) lifetime 235.1 ms, which be switched off 358 K restored after cooling temperature. Furthermore, turn green 208 blue 77 K, due slight change conformation packing as revealed analysis temperature‐dependent single crystal structures. This single‐component gel, capable achieving color‐tunable “on‐off”‐switchable response, offers significant developing ultralong RTP multi‐level features.

Language: Английский

From Hard Crystal to Soft Fiber: Thermochromic Color‐Tunable and “On‐Off”‐Switchable Afterglow of Single‐Component Ultralong RTP Organogel DOI Open Access

Huamiao Lin,

Yi Shi, Peng Geng

et al.

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 25, 2025

Abstract Pure organic stimuli‐responsive phosphorescent materials with multi‐color afterglows, good reversibility, and ease manipulation are highly appealing for dynamic anti‐counterfeiting applications, but remain challenging to achieve. In this work, a soft organogel is rationally designed by introducing functional carbonyl (benzoyl or acetyl) units into dibenzofuran skeleton promote the intersystem crossing (ISC), screening potential organogelators through predicting self‐assembly process aid of all‐atom molecular simulation (AMDS). AMDS indicates that gelator candidates ( DBF‐Me DBF‐Ph ) can self‐assemble in mixture DMSO/H 2 O balanced π‐π intermolecular interactions between neighboring molecules, thus promoting gelation. Notably, fiber gel exhibits yellow afterglow at room temperature (298 K) lifetime 235.1 ms, which be switched off 358 K restored after cooling temperature. Furthermore, turn green 208 blue 77 K, due slight change conformation packing as revealed analysis temperature‐dependent single crystal structures. This single‐component gel, capable achieving color‐tunable “on‐off”‐switchable response, offers significant developing ultralong RTP multi‐level features.

Language: Английский

Citations

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