Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160357 - 160357
Опубликована: Фев. 1, 2025
Язык: Английский
Advanced Materials, Год журнала: 2024, Номер 36(27)
Опубликована: Апрель 23, 2024
Abstract The development of single‐system materials that exhibit both multicolor room‐temperature phosphorescence (RTP) and thermally activated delayed fluorescence (TADF) with tunable after glow colors channels is challenging. In this study, four metal‐free carbon dots (CDs) are developed through structural tailoring, panchromatic high‐brightness RTP achieved via strong chemical encapsulation in urea. maximum lifetime quantum yield reaches 2141 ms 56.55%, respectively. Moreover, CDs‐IV@urea, prepared coreshell interaction engineering, exhibits a dual afterglow red green TADF. degree conjugation functional groups precursors affects the binding interactions nitrogen cladding on CDs, which turn stabilizes triplet energy levels gap between S 1 T (Δ E ST ) to induce RTP. enhanced wrapping lowers Δ , promoting reverse intersystem crossing, leads This fully state, thus stabilizing material water, even extreme environments such as acids oxidants. These tested multicolor, time, temperature multiencryption well vivo bioimaging. Hence, these have promising practical applications information security biomedical diagnosis treatment.
Язык: Английский
Процитировано
44
Nature Communications, Год журнала: 2024, Номер 15(1)
Опубликована: Март 15, 2024
Abstract There is interest in developing sustainable materials displaying circularly polarized room-temperature phosphorescence, which have been scarcely reported. Here, we introduce biobased thin films exhibiting luminescence with simultaneous phosphorescence. For this purpose, phosphorescence-active lignosulfonate biomolecules are co-assembled cellulose nanocrystals a chiral construct. The shown to capture the chirality generated by within films, emitting phosphorescence 0.21 dissymmetry factor and 103 ms lifetime. By contrast most organic materials, chiral-phosphorescent system possesses stability, no significant recession under extreme chemical environments. Meanwhile, luminescent resist water humid environments but fully biodegradable (16 days) soil conditions. introduced bio-based, environmentally-friendly expected open many opportunities, as demonstrated here for information processing anti-counterfeiting.
Язык: Английский
Процитировано
38
Green Chemistry, Год журнала: 2024, Номер 26(16), С. 9075 - 9103
Опубликована: Янв. 1, 2024
Towards the sustainable production of biomass-derived materials with smart functionality.
Язык: Английский
Процитировано
24
Nature Communications, Год журнала: 2024, Номер 15(1)
Опубликована: Ноя. 3, 2024
Glass, a diverse family of amorphous materials, has significantly advanced human society across various fields. The demand for flexible ultrathin glass, driven by modern optical displays and portable optoelectronics, presents challenges in energy consumption, fabrication complexity, recycling. Here, we demonstrate flexibility full-color luminescence large-scale glasses derived from readily available natural resources, specifically egg albumen (EA) gelatin (GEL), via an evaporation-driven self-assembly process. dynamic crosslinked networks formed through hydrogen bonding between EA GEL impart both high hardness to the glasses, with flexural strength values comparable state-of-the-art inorganic organic glasses. Additionally, EA–GEL-based exhibit excitation-dependent time-gated chiral ultralong phosphorescence color blue red, lifetime up 180.4 ms. With their easy processability emission, these biogenic can be fabricated into anti-counterfeiting patterns information codes. There is increasing thin, but its recycling complex. authors report development glass luminescence, albumin gelatin.
Язык: Английский
Процитировано
21
Chemical Science, Год журнала: 2024, Номер 15(12), С. 4222 - 4237
Опубликована: Янв. 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.
Язык: Английский
Процитировано
20
Advanced Science, Год журнала: 2024, Номер 11(29)
Опубликована: Май 30, 2024
Abstract Hydrogen (H 2 ) has emerged as a clean and versatile energy carrier to power carbon‐neutral economy for the post‐fossil era. generation from low‐cost renewable biomass by virtually inexhaustible solar presents an innovative strategy process organic solid waste, combat crisis, achieve carbon neutrality. Herein, progress breakthroughs in solar‐powered H production are reviewed. The basic principles of solar‐driven first introduced better understanding reaction mechanism. Next, merits shortcomings various semiconductors cocatalysts summarized, strategies addressing related issues also elaborated. Then, bio‐based feedstocks reviewed with emphasis on effect photocatalysts catalytic systems performance. Of note, concurrent value‐added chemicals reforming is emphasized well. Meanwhile, emerging photo‐thermal coupling that shows grand prospect maximally utilizing entire spectrum discussed. Further, direct utilization hydrogen green reductant producing via reactions highlighted. Finally, challenges perspectives photoreforming toward envisioned.
Язык: Английский
Процитировано
13
Chemistry of Materials, Год журнала: 2024, Номер 36(12), С. 5878 - 5896
Опубликована: Март 28, 2024
The modulation of fluorescence properties light-emitting molecules, especially in solid or aggregate states, is crucial for their practical applications. Polymeric systems offer flexible structural design and solution-processing abilities, affording versatile platforms achieving color-tunable fluorescence, those with well-defined structures obtained by controlled polymerization. Meanwhile, the emergence aggregation-induced emission (AIE) thermally activated delayed (TADF) concepts has revolutionized field materials, including fluorescent polymers. This Review focuses on recently developed polymer that have realized fine-tuning emissions. It delves into various color-tuning mechanisms, exploring molecular interactions such as dye–dye interactions, charge transfer, energy polymeric microenvironment. Special attention given to through-space transfer (TSCT) unconventional Förster resonance (FRET), which garnered significant interest recently. We aim valuable insights from perspective eventually provide an outlook potential directions future research this field.
Язык: Английский
Процитировано
12
Nature Communications, Год журнала: 2024, Номер 15(1)
Опубликована: Март 22, 2024
Abstract Cocrystal engineering is an efficient and simple strategy to construct functional materials, especially for the exploitation of novel multifunctional materials. Herein, we report two kinds nucleic-acid-base cocrystal systems that imitate strong hydrogen bond interactions constructed in form complementary base pairing. The cocrystals studied exhibit different colors phosphorescence from their monomeric counterparts show feature rare high-temperature phosphorescence. Mechanistic studies reveal network stabilizes triplet state suppresses non-radiative transitions, resulting even at 425 K. Moreover, isolation effects regulate between phosphor groups, realizing manipulation aggregation single-molecule Benefiting long-lived with a high quantum yield, generation reactive oxygen species by energy transfer also available utilize some applications such as photodynamic therapy broad-spectrum microbicidal effects. In vitro experiments efficiently kill bacteria on tooth surface significantly help prevent dental caries. This work not only provides deep insight into relationship structure-properties systems, but facilitates design materials enriches potential applications.
Язык: Английский
Процитировано
8
Advanced Science, Год журнала: 2024, Номер 11(32)
Опубликована: Июнь 24, 2024
Abstract Ultralong room‐temperature phosphorescent (URTP) materials have attracted wide attention in anti‐counterfeiting, optoelectronic display, and bio‐imaging due to their special optical properties. However, blue are very scarce during applications because of the need simultaneously populate stabilize high‐energy excited states. In this work, a stepwise stiffening chromophore strategy is proposed suppress non‐radiative jump by continuously reducing internal spin chromophore, successfully developing series materials. Phosphorescence lifetimes more than 3 s achieved, with longest lifetime reaching 5.44 lasting 70 naked eye. As far as know, best result that has been reported. By adjusting conjugation, multicolor phosphorescences from cyan green realized. addition, these chromophores exhibit same excellent properties urea polyvinyl alcohmance (PVA). Finally, applied luminescent displays.
Язык: Английский
Процитировано
8
Advanced Optical Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 28, 2025
Abstract Blue is one of the three primary colors, and it a crucial element in regulation application organic room‐temperature phosphorescence (ORTP). However, considerable Stokes shift small molecules presents challenge for creating blue afterglow materials. To address this, host‐guest‐doped materials are prepared by selecting compounds with similar structures self‐doping. This method effectively regulated long‐lasting phosphorescence. Additionally, persistent‐RTP long‐persistent luminescence (LPL) properties can be further enhanced incorporating rigid or flexible polymer network, dense environment between host guest. Remarkably, lifetime duration polymer‐assisted doped ≈5 times greater than those host‐guest crystal Apart from its high efficiency, environmental friendliness, easy synthesis, this ORTP material boasts thermal stability flexibility. Furthermore, demonstrates potential applications such as information encryption anti‐counterfeiting across various media, including paper, cotton thread, leaves.
Язык: Английский
Процитировано
1