Achieving Colorful Ultralong-Lifetime Room-Temperature Phosphorescence Based on Benzocarbazole Derivatives through Resonance Energy Transfer DOI
Zhizheng Li, Yue Qian, Ye He

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(19), P. 25415 - 25421

Published: May 2, 2024

It is of practical significance to develop polymer-based room-temperature phosphorescence (RTP) materials with ultralong lifetime and multicolor afterglow. Herein, the benzocarbazole derivatives were selected combined a poly(vinyl alcohol) (PVA) matrix by coassembly strategy. Owing hydrogen-bonding interactions between PVA matrix, nonradiative transition quenching triplet excitons are effectively inhibited. Therefore, maximum emission 2202.17 ms from ABfCz-PVA quantum efficiency 34.97% ABtCz-PVA obtained, respectively. In addition, commercially available dye molecules construct phosphorescent resonance energy transfer (PRET) systems for acceptors, enabling full-color afterglow in blue, green, yellow, red, even white. Based on characteristics prepared RTP materials, multifunctional applications flexibility, information encryption, erasable drawing deeply explored.

Language: Английский

Phosphorescence resonance energy transfer from purely organic supramolecular assembly DOI
Xianyin Dai,

Man Huo,

Yu Liu

et al.

Nature Reviews Chemistry, Journal Year: 2023, Volume and Issue: 7(12), P. 854 - 874

Published: Nov. 22, 2023

Language: Английский

Citations

106
Organic room-temperature phosphorescence materials for bioimaging DOI
Yahui Zhang, Hairong Li, Mengdie Yang

et al.

Chemical Communications, Journal Year: 2023, Volume and Issue: 59(36), P. 5329 - 5342

Published: Jan. 1, 2023

Organic room-temperature phosphorescence (RTP) materials are currently the focus of research in field bioimaging. In comparison with conventional imaging modalities based on organic fluorescent dyes, RTP long lifetime enable time-resolved to improve resolution by avoiding autofluorescence. this review, we will start summarizing strategies for achieving high performance bioimaging, including development RTP-compounds, host-guest doping materials, and supramolecular assemblies. We then discuss optimization nanonization processes obtain nanoparticles controllable size, dispersibility, improved stability. The differences between top-down bottom-up approaches further described. Finally, briefly introduce emerging methods preparing

Language: Английский

Citations

63
Ultralong Room-Temperature Phosphorescence with Second-level Lifetime in Water Based on Cyclodextrin Supramolecular Assembly DOI
Dan Li, Zhenjiang Liu, Manman Fang

et al.

ACS Nano, Journal Year: 2023, Volume and Issue: 17(13), P. 12895 - 12902

Published: June 29, 2023

Organic solid-state materials with long-lived room-temperature phosphorescence (RTP) emission have been widely developed and applied in many fields, while works developing solution-phase were rarely reported owing to the ultrafast nonradiative relaxation quenchers from liquid medium. Herein, we report an ultralong RTP system water through assembly based on a β-cyclodextrin host p-biphenylboronic acid guest lifetime of 1.03 s under ambient conditions. It is worth noting that depends host-guest inclusion as well intermolecular hydrogen bonding interactions, which suppress avoid effectively. Furthermore, addition fluorescent dyes achieved tuning afterglow color radiative energy transfer reabsorption.

Language: Английский

Citations

62
Stimulus-Responsive Organic Phosphorescence Materials Based on Small Molecular Host–Guest Doped Systems DOI
Yunxiang Lei, Wenbo Dai,

Gengchen Li

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2023, Volume and Issue: 14(7), P. 1794 - 1807

Published: Feb. 10, 2023

Small molecular host–guest doped materials exhibit superiority toward high-efficiency room-temperature phosphorescence (RTP) due to their structural design diversity and ease of preparation. Dynamic RTP display excellent characteristics, such as good reversibility, quick response, tunable luminescence ability, making them applicable various cutting-edge technologies. Herein, we summarize the advances in dynamic that respond external internal stimuli present some insights into strategies underlying mechanisms. Subsequently, specific viewpoints are described regarding this promising field for development materials. This Perspective is highly beneficial future intelligent applications systems.

Language: Английский

Citations

50
Targeting Compact and Ordered Emitters by Supramolecular Dynamic Interactions for High‐performance Organic Ambient Phosphorescence DOI
Guang‐Qiang Yin,

Jiayin Zhou,

Wei Lü

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(37)

Published: Feb. 9, 2024

Purely organic room-temperature phosphorescence (RTP) materials have received intense attention due to their fascinating optical properties and advanced optoelectronic applications. The promotion of intersystem crossing (ISC) minimalization nonradiative dissipation under ambient conditions are key prerequisites for realizing high-performance RTP; However, the ISC process is generally inefficient fluorogens populated triplet excitons always too susceptible be well stabilized by conventional means. Particularly, organizing fluorophores into compact ordered entities supramolecular dynamic interactions has proven a newly-emerged strategy boost greatly suppress non-radiative relaxations immensely, facilitating population stabilization access RTP. Consequently, well-defined emitters enable robust RTP emission even in solution state, thus extending Here, this review focused on timely brief introduction recent progress tailoring interactions. Their typical preparation strategies, properties, applications thoroughly summarized. In summary section, challenges perspectives field highlighted suggest potential directions future study.

Language: Английский

Citations

30
Achieving Bright and Long‐Lived Aqueous Room‐Temperature Phosphorescence of Carbon Nitrogen Dots Through In Situ Host–Guest Binding DOI
Jie Li, Heng Zhou, Shan Jin

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(24)

Published: Feb. 29, 2024

Abstract The development of bright and long‐lived aqueous room‐temperature phosphorescent (RTP) materials holds paramount importance in broadening the application scope RTP material system. However, conventional usually exhibit low efficiency short lifetime solution. Herein, an situ host–guest strategy is proposed to achieve cyanuric acid (CA)‐derived carbon nitrogen dots (CNDs) composite (CNDs@CA) that demonstrates a significant enhancement both quantum yield (QY) mediated by water. Detailed investigations reveal robust hydrogen bonding networks between CNDs@CA water effectively stabilize triplet excitons suppress nonradiative decays, as well facilitate efficient energy transfer from CA CNDs, thereby prolonging enhancing RTP. QY can be increased 26.89% (3.9‐fold increase) 951.25 ms (5.5‐fold increase), respectively, with incorporation 50 wt% under ambient conditions. Even fully environments (with up 400 added), exhibits persistent water‐boosted properties, demonstrating exceptional stability. property solutions presents potential for high signal‐to‐noise ratio afterglow bioimaging advanced information encryption.

Language: Английский

Citations

29
Molecular design, synthesis, properties, and applications of organic triplet emitters exhibiting blue, green, red and white room-temperature phosphorescence DOI Creative Commons
Mariia Stanitska, Dmytro Volyniuk, Boris F. Minaev

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(8), P. 2662 - 2698

Published: Jan. 1, 2024

Theoretical and experimental approaches for the development of organic room temperature phosphorescence compounds exhibiting blue, green, red, white emissions many potential applications are analysed classified.

Language: Английский

Citations

21
Recent progress in ion-regulated organic room-temperature phosphorescence DOI Creative Commons
Wenbo Dai,

Yitian Jiang,

Yunxiang Lei

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(12), P. 4222 - 4237

Published: Jan. 1, 2024

In this perspective, the progress in ion-regulated organic RTP materials and described roles of ions, including ion–π interactions, electrostatic coordinate have been summarized.

Language: Английский

Citations

21
Multi‐Functional Integration of Phosphor, Initiator, and Crosslinker for the Photo‐Polymerization of Flexible Phosphorescent Polymer Gels DOI

Yanyan Cao,

Dan Wang, Yongfeng Zhang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(18)

Published: March 8, 2024

A general approach to constructing room temperature phosphorescence (RTP) materials involves the incorporation of a phosphorescent emitter into rigid host or polymers with high glass transition temperature. However, these often suffer from poor processability and suboptimal mechanical properties, limiting their practical applications. In this work, we developed benzothiadiazole-based dialkene (BTD-HEA), multifunctional remarkable yield intersystem crossing (Φ

Language: Английский

Citations

20
Purely Organic Room‐Temperature Phosphorescence Molecule for High‐Performance Non‐Doped Organic Light‐Emitting Diodes DOI

Xiaoluo Peng,

Peng Zou,

Jiajie Zeng

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(29)

Published: April 30, 2024

Abstract Purely organic molecules with room‐temperature phosphorescence (RTP) are potential luminescent materials high exciton utilization for light‐emitting diodes (OLEDs), but those exhibiting superb electroluminescence (EL) performances rarely explored, mainly due to their long lifetimes. Herein, a robust purely RTP molecule, 3,6‐bis(5‐phenylindolo[3,2‐a]carbazol‐12(5H)‐yl)‐xanthen‐9‐one (3,2‐PIC‐XT), is developed. The neat film of 3,2‐PIC‐XT shows strong green very short lifetime (2.9 μs) and photoluminescence quantum yield (72 %), behaviors balanced bipolar charge transport. nature validated by steady‐state transient absorption emission spectroscopies, the working mechanism deciphered theoretical simulation. Non‐doped multilayer OLEDs using thin films furnish an outstanding external efficiency (EQE) 24.91 % extremely low roll‐off (1.6 %) at 1000 cd m −2 . High‐performance non‐doped top‐emitting tandem also achieved, providing remarkable EQEs 24.53 42.50 %, respectively. Delightfully, simplified employing thick realized, furnishing excellent EQE 17.79 greatly enhanced operational lifetime. temperature‐dependent EL spectroscopies demonstrate electrophosphorescence attribute 3,2‐PIC‐XT. These best devices based on reported so far.

Language: Английский

Citations

20