Engineering room‐temperature phosphorescence in purely organic materials through isomeric molecular packing and intermolecular interactions DOI Creative Commons
Mengke Li, Zijian Chen,

Kunkun Liu

et al.

FlexMat., Journal Year: 2025, Volume and Issue: unknown

Published: June 6, 2025

Abstract Achieving control over room‐temperature phosphorescence (RTP) performance through delicate molecular engineering and intermolecular interactions is of great significance for advancing RTP research. In this study, a series isomers containing up to four compounds were synthesized by integrating tetrahydroquinoline substituent at different positions phenoxathiine core. All exhibit afterglow emission in the crystalline state, attributed diverse that stabilize triplet excitons. Notably, variation substitution leads distinct interactions, enabling fine‐tuned properties strategic engineering. Among them, isomer 2,1‐PXTACR, which exhibits robust achieves an exceptional duration exceeding 5 s average lifetime 310 ms. Furthermore, specific role solid‐state environment stabilizing excitons systematically elucidated work. The modulation strategy established herein provides valuable insights into structure‐property relationships governing materials offers rational approach developing high‐performance purely organic phosphorescent systems.

Language: Английский

Time-dependent phosphorescence from carbon dots enables multidimensional photoactivated printing and tunable molecular calculations DOI
Jianwen Zeng,

Zhaorun Tang,

Junping Yin

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 157819 - 157819

Published: Nov. 1, 2024

Language: Английский

Citations

3
Precise Control of Efficient Phosphorescence in Host–Guest Doping Systems via Dynamic Metal–Ligand Coordination DOI
Yan Guo, Ruimin Pei, Jiaqian Qin

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: 16(2), P. 537 - 543

Published: Jan. 6, 2025

Organic room-temperature phosphorescent (RTP) materials have wide-ranging applications in anticounterfeiting, biodiagnostics, and optoelectronic devices due to their unique properties. However, it remains a challenge give organic RTP dynamic tunability satisfy the demands of various advanced applications. Herein, we propose an effective strategy precisely modulate performance by incorporating metal–ligand coordination within host–guest doped system. The phosphors bipyridine derivatives with excellent properties were into small-molecule host matrix. Halide salts system effectively tuning performance, including efficiency lifetime, through coordination. Notably, leveraging reversible feature coordination, multilevel information encryption, thermal development time-resolved high reversibility, is successfully demonstrated. work demonstrates that could serve as method for developing efficient tunable

Language: Английский

Citations

0
Chameleon-inspired adaptive photoreactive polyurethane films for dynamic secure multidimensional “burn-after-reading” encryption DOI

Wei Bai,

Yixin Ji,

Ahmed Olalekan Omoniyi

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159316 - 159316

Published: Jan. 6, 2025

Language: Английский

Citations

0
How Intermolecular Interaction and Hydrostatic Pressure Affect the Organic Room Temperature Phosphorescence Properties: A QM/MM Study DOI
Yuanyuan Xu, Huanling Liu, Kunwei Pang

et al.

Chinese Journal of Physics, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

0
Enhanced Photoactivated Circularly Polarized Afterglow with High Dissymmetry Factor and Tunable Emission DOI Open Access
Yuxia Zhang, Yu-Chang Wang,

Junjie Wu

et al.

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

Published: Feb. 5, 2025

Abstract Photoactivated circularly polarized afterglow (CPA) exhibits broad application prospects in various optoelectronic areas due to its multidimensional emission characteristics, including wavelengths, lifetimes, and chirality. Achieving photoactivated CPA with extremely high dissymmetry factor ( g lum ) values is highly desired but considerably challenging. This work reports a bilayer assembly (R/S‐CLC‐TPB) integrating TPB@PMMA thin film the selective reflection of cholesteric liquid crystals. Initially, R/S‐CLC‐TPB no emission, while following 1 min UV irradiation, it achieves an noticeable long lifetime 125 ms value up 1.6. enhancement can be attributed oxygen consumption properties under subsequently minimizing loss triplet exciton. Furthermore, by employing triplet‐singlet Förster resonance energy transfer (TS‐FRET) strategy from organic persistent room‐temperature phosphorescence donor fluorescent dye acceptor, color successfully modulated green orange. Ultimately, these materials demonstrate promising capabilities for advanced multi‐level information encryption utilizing their tunable color, create multiple layers that selectively accessed decoded based on photoactivation chiroptical properties.

Language: Английский

Citations

0
Ultralong Room-Temperature Phosphorescence Induced by H-Bonding and π–π Interactions in Halogen-Free Carbazole Derivatives DOI
Komal Vasant Barhate, Ksenija D. Glusac, Neeraj Agarwal

et al.

The Journal of Physical Chemistry C, Journal Year: 2025, Volume and Issue: 129(9), P. 4565 - 4574

Published: Feb. 24, 2025

Materials having room-temperature phosphorescence (RTP) are in limelight due to their advantageous long luminescence lifespan for applications optoelectronics, bioimaging, and security purpose devices. Development of metal- halogen-free organics persistent RTP has been envisaged through aggregation, heavy atom substitution, host–guest interactions, etc. In this article, we present experimental evidence the effect H-bonding other nonbonding interactions on types emission five carbazole derivatives. An unsubstituted showed only fluorescence powder form, while N-aryl-substituted carbonyl nitrile groups (Benzal-CN-Cbz, Acph-CN-Cbz, Bnph-CN-Cbz) dual consisting form under ambient conditions. Acph-CN-Cbz longest excited-state lifetime exceeding 1.2 ms form. Benzal-CN-Cbz, Bnph-CN-Cbz is correlated evident from single-crystal analysis. involving group extensive π–π caused close packing solid state associated with long-lived triplet excited RTP. Further, a up 1.5 s at temperature air was displayed drop-casted PVA films. To best our knowledge, few organics, without halogen atoms, available such lifetimes.

Language: Английский

Citations

0
Development of a Mitochondria-Targeted Ruthenium(II)-Based Phosphorescent Probe for Hypochlorite Detection in Acute Inflammatory Model DOI

Manchang Kou,

Zhongsheng Xu, Yanan Guo

et al.

Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

The uncontrolled acute inflammatory response triggers dysregulation of the immunoinflammatory system, contributing to development and progression various diseases (AIDs). Hypochlorite (ClO–), as a crucial oxidative mediator in AIDs, accumulates environment, leading direct cytotoxicity, secondary injury, tissue dysfunction. However, achieving rapid detection, accurate tracking, situ monitoring, real-time imaging ClO– vivo remains significant challenge. To address these issues, we developed mitochondria-targeted phosphorescent probe (RuDM), which introduces ligand containing C═N bond recognition site precisely identify AIDs. It responds rapidly (6 s) exhibits long-lived luminescence (471 ns), with 190-fold enhancement monitoring ClO–. Meanwhile, density functional theory (DFT) indicates that RuCOOH is attributed removal an electron-withdrawing group (diaminomaleonitrile) from RuDM, leads increase intersystem crossing rate greater probability radiative transition T1 state. Finally, RuDM used monitor levels exogenous endogenous cells using confocal microscopy evaluate its capability for detection over time model. above results suggest novel molecular platform detect ClO–, has potential practical tool research on pathogenesis diseases.

Language: Английский

Citations

0
Cyclization Boosted Long-Lived Polymeric Phosphorescence under Ambient Conditions DOI
Xiaojuan Wang, Bingya Liu, Lunjun Qu

et al.

Macromolecules, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Language: Английский

Citations

0
Clusterization-triggered room-temperature phosphorescent synthetic polymeric materials DOI

Wenya Yan,

Peixuan Dong,

Qiyu Zhang

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 535, P. 216629 - 216629

Published: March 28, 2025

Language: Английский

Citations

0
Stimulus‐Responsive Emission via Dynamic Triplet Energy Transfer in Organic Room‐Temperature Phosphorescence Glass DOI

Zixuan Xu,

Wenbin Chen,

Keyao Chen

et al.

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

Published: April 8, 2025

Abstract Dynamic organic room‐temperature phosphorescence (RTP) glasses with color tunability offer significant potential for practical applications due to their high transparency and excellent machinability. In this study, efficient dynamic RTP properties are used as triplet donors, combined commercially available chromophores singlet/triplet acceptors, successfully fabricate a series of host‐guest doping color‐tunable afterglow responses external stimuli. The energy transfer mechanisms, including triplet‐to‐singlet resonance Dexter‐type triplet‐to‐triplet transfer, confirmed using state‐of‐the‐art femtosecond time‐resolved transient absorption spectroscopy. These demonstrate transparency, good machinability, responsiveness study highlights in large‐area glass fabrication, data encryption, flexible displays. This work not only provides simple design principle developing novel materials but also promotes the information encryption optoelectronics.

Language: Английский

Citations

0