Rational Design of Low-Molecular-Weight Organogels with Ultralong Room-Temperature Phosphorescence for Security DOI
Yi Shi,

Huamiao Lin,

Peng Geng

et al.

ACS Applied Optical Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 27, 2024

Supramolecular organogels have emerged as a promising matrix for achieving dynamic room-temperature phosphorescence (RTP) due to their rigid three-dimensional network structure, sensitive responsive behavior external stimuli, and perfect reversibility. However, the efficient construction of single-component, ultralong organic RTP materials remains significant challenge. In this study, we utilized all-atom molecular dynamics simulations predict self-assembly process three low-molecular-weight carbazole derivatives with chemical structures (Cz-P, Cz-PF, Cz-PCl), ultimately identifying Cz-P potential organogelator. could form stable gel in mixture DMSO/H2O (1:1 v/v), introducing halogen atom build bonding was destructive achieve balanced intermolecular interactions, which is essential gelation. Notably, emitted (τp = 581.8 ms) state. Moreover, triplet-to-singlet Förster resonance energy transfer (TS-FRET) between donor fluorescent dye Sulforhodamine 101 (acceptor) provided long-lived red fluorescence. Due gel's thermal afterglow be conveniently switched "on" "off", demonstrating excellent fatigue resistance multilevel anticounterfeiting capabilities.

Language: Английский

Ultralong Room Temperature Phosphorescence through Both Space Confinement and Long-Range Charge Migration DOI
Hua Feng, Zhiqiang Yang, Dan Li

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Doping guest materials into host with a confined space to suppress nonradiative decay is an effective strategy for achieving room-temperature phosphorescence (RTP). However, constructing host–guest doped ultralong RTP (URTP) still challenging. Herein, by embedding three coumarin derivatives boric acid via one-step heat treatment, the URTP material afterglow lasting up 60 s, lifetime of 1.59 and quantum yield 18.14% was successfully prepared. Experimental results show that dense 3D boron oxide network formed after along B–O covalent bonds O→B coordination between guest, effectively suppresses transitions through both physical chemical confinement. More importantly, oxygen vacancy defects in during combined charge-separated states generated molecules upon irradiation, together facilitated long-range charge migration process. In addition, recombination accompanied long-lived emission. Finally, prepared exhibit potential applications encryption decryption information security fields.

Language: Английский

Citations

0
Ultra-stable and colorful persistent organic phosphorescence of host-guest composites under solution, UV irradiation, and high temperature DOI

Lei-lei Guan,

Fan Wu,

Xiaolang Wang

et al.

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113505 - 113505

Published: April 1, 2025

Language: Английский

Citations

0
Progress in Polymer‐Based Pure Organic Room Temperature Phosphorescent Materials DOI
Haiqing Ma, Jinbin Liu, Zhichao Mao

et al.

Chemistry - An Asian Journal, Journal Year: 2025, Volume and Issue: unknown

Published: April 23, 2025

Abstract To date, organic room‐temperature phosphorescent (RTP) materials have received much attention due to their long lifetime and large Stokes shift, been widely used in anti‐counterfeiting encryption, bio‐imaging, sensing monitoring. Researchers a variety of approaches construct ultra‐long, efficient RTP materials, with the confinement chromophores polymers being favored improve performance. The polymer entanglement structure restricts vibration rotation chromophore, which successfully suppresses non‐radiative excitation triplet exciton protects from external environment (oxygen, water), is conducive realization ultra‐long bright emission, makes material easy process, broadens application range material. This review summarizes recent advances study polymeric underlying mechanisms design strategies, discusses properties amorphous crystalline respectively, as well latest applications polymers, finally challenges for development outlook future.

Language: Английский

Citations

0
Rational Design of Low-Molecular-Weight Organogels with Ultralong Room-Temperature Phosphorescence for Security DOI
Yi Shi,

Huamiao Lin,

Peng Geng

et al.

ACS Applied Optical Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 27, 2024

Supramolecular organogels have emerged as a promising matrix for achieving dynamic room-temperature phosphorescence (RTP) due to their rigid three-dimensional network structure, sensitive responsive behavior external stimuli, and perfect reversibility. However, the efficient construction of single-component, ultralong organic RTP materials remains significant challenge. In this study, we utilized all-atom molecular dynamics simulations predict self-assembly process three low-molecular-weight carbazole derivatives with chemical structures (Cz-P, Cz-PF, Cz-PCl), ultimately identifying Cz-P potential organogelator. could form stable gel in mixture DMSO/H2O (1:1 v/v), introducing halogen atom build bonding was destructive achieve balanced intermolecular interactions, which is essential gelation. Notably, emitted (τp = 581.8 ms) state. Moreover, triplet-to-singlet Förster resonance energy transfer (TS-FRET) between donor fluorescent dye Sulforhodamine 101 (acceptor) provided long-lived red fluorescence. Due gel's thermal afterglow be conveniently switched "on" "off", demonstrating excellent fatigue resistance multilevel anticounterfeiting capabilities.

Language: Английский

Citations

1