A5085671271- Luminescence and Fluorescent Materials
- Organic Light-Emitting Diodes Research
- Nuclear reactor physics and engineering
- Nuclear physics research studies
- Molecular Sensors and Ion Detection
- Nuclear Physics and Applications
- Nuclear Materials and Properties
- Astronomical and nuclear sciences
- Fusion materials and technologies
- Rare-earth and actinide compounds
- Covalent Organic Framework Applications
- Nuclear Engineering Thermal-Hydraulics
- Quantum Chromodynamics and Particle Interactions
- Advanced Battery Materials and Technologies
- Advanced battery technologies research
- Advancements in Battery Materials
- Radiation Detection and Scintillator Technologies
- Heat transfer and supercritical fluids
- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Perovskite Materials and Applications
- Graphite, nuclear technology, radiation studies
- Metal-Organic Frameworks: Synthesis and Applications
- Metallurgical Processes and Thermodynamics
- Atomic and Molecular Physics
Northwestern Polytechnical University
2021-2025
Chinese Academy of Sciences
2014-2025
Sun Yat-sen University
2024-2025
West China Medical Center of Sichuan University
2025
Academy of Mathematics and Systems Science
2025
Northwestern Polytechnic University
2024
Lanzhou University
2022-2024
Nanyang Technological University
2018-2023
Institute of Modern Physics
2014-2023
University of Chinese Academy of Sciences
2021-2023
Visible light is much more available and less harmful than ultraviolet light, but ultralong organic phosphorescence (UOP) with visible-light excitation remains a formidable challenge. Here, concise chemical approach provided to obtain bright UOP by tuning the molecular packing in solid state under irradiation of visible e.g., cell phone flashlight ambient conditions (room temperature air). The spectra exhibit an obvious redshift via incorporation halogen atoms tune intermolecular...
Abstract Functional materials displaying tunable emission and long-lived luminescence have recently emerged as a powerful tool for applications in information encryption, organic electronics bioelectronics. Herein, we present design strategy to achieve color-tunable ultralong room temperature phosphorescence (UOP) polymers through radical multicomponent cross-linked copolymerization. Our experiments reveal that by changing the excitation wavelength from 254 370 nm, these display multicolor...
Smart materials with ultralong phosphorescence are rarely investigated and reported. Herein we report on a series of molecules unique dynamic organic (UOP) features, enabled by manipulating intermolecular interactions through UV light irradiation. Our experimental data reveal that prolonged irradiation single-component phosphors PCzT, BCzT, FCzT under ambient conditions can activate UOP emission lifetimes spanning from 1.8 to 1330 ms. These also be deactivated back their original states...
Abstract Ultralong organic phosphorescence (UOP) based on metal‐free porous materials is rarely reported owing to rapid nonradiative transition under ambient conditions. In this study, hydrogen‐bonded aromatic frameworks (HOAFs) with different pore sizes were constructed through strong intralayer π–π interactions enable ultralong in conditions for the first time. Impressively, yellow UOP a lifetime of 79.8 ms observed PhTCz‐1 lasted several seconds upon ceasing excitation. For PhTCz‐2 and...
Organic optoelectronic functional materials featuring circularly polarized emission and persistent luminescence represent a novel research frontier show promising applications in data encryption, displays, biological imaging, so on. Herein, we present simple universal approach to achieve organic phosphorescence (CPP) from amorphous copolymers by the incorporation of axial chiral chromophores into polymer chains via radical cross-linked polymerization. Our experimental reveal that (R/S)-PBNA...
A new type of materials, organic salts in the crystal state, have ultralong phosphorescence (UOP) under ambient conditions. The change cations (NH4+ , Na+ or K+ ) these phosphors gives access to tunable UOP colors ranging from sky blue yellow green, along with emission lifetimes over 504 ms. Single-crystal analysis reveals that unique ionic bonding can promote an ordered arrangement which then facilitate molecular aggregation for generation. Additionally, reversible be realized through...
Abstract Development of novel strategies for achieving amorphous ultralong organic phosphorescence (UOP) at room temperature is highly desired. Herein, a simple approach reported by coassembling small molecules with polyvinyl alcohol (PVA) to afford UOP. These planar conformation present quenched triplet state emission in an excessive stacking solid state. When these PVA, their structures are well confined coassembly films. Such environment leads restricted molecular rotation and vibration,...
Developing molecules with high emission efficiency both in solution and the solid state is still a great challenge, since most organic luminogens are either aggregation-caused quenching or aggregation-induced molecules. This dilemma was overcome by integrating planar distorted structures long alkyl side chains to achieve DAπAD type emitters. A linear diphenyl-diacetylene core charge transfer effect ensure considerable planarity of these excited state, allowing strong dilute (quantum yield up...
Heteroatom-doped polymers or carbon nanospheres have attracted broad research interest. However, rational synthesis of these with controllable properties is still a great challenge. Herein, we develop template-free approach to construct cross-linked polyphosphazene tunable hollow structures. As comonomers, hexachlorocyclotriphosphazene provides N and P atoms, tannic acid can coordinate metal ions, the replaceable third comonomer endow materials various properties. After carbonization,...
Abstract Amorphous purely organic phosphorescence materials with long‐lived and color‐tunable emission are rare. Herein, we report a concise chemical ionization strategy to endow conventional poly(4‐vinylpyridine) (PVP) derivatives ultralong (UOP) under ambient conditions. After the of 1,4‐butanesultone, resulting PVP‐S phosphor showed UOP lifetime 578.36 ms, which is 525 times longer than that PVP polymer itself. Remarkably, multicolor ranging from blue red was observed variation excitation...
Scintillators that exhibit X-ray-excited luminescence have great potential in radiation detection, X-ray imaging, radiotherapy, and non-destructive testing. However, most reported scintillators are limited to inorganic or organic crystal materials, which some obstacles repeatability processability. Here we present a facile strategy achieve the phosphorescent scintillation from amorphous copolymers through copolymerization of bromine-substituted chromophores acrylic acid. These polymeric...
Achieving multicolor organic afterglow materials with narrowband emission and high color purity is important in various optoelectronic fields but remains a great challenge. Here, an efficient strategy presented to obtain via Förster resonance energy transfer from long-lived phosphorescence donors fluorescence acceptors polyvinyl alcohol matrix. The resulting exhibit full width at half maximum (FWHM) as small 23 nm the longest lifetime of 721.22 ms. Meanwhile, by pairing appropriate...
Multicolor organic room temperature phosphorescence (RTP) has garnered wide research attention due to the long luminescence lifetime and tunable excited state properties, which show great potential in displays, anticounterfeiting, data encryption, sensing. However, because of sensitivity triplet excitons materials, emitting level compounds is hard manipulate. Therefore, realizing multicolor RTP materials still a huge challenge. In this review, we summarize recent advances including...
Stretchable phosphorescence materials potentially enable applications in diverse advanced fields wearable electronics. However, achieving room-temperature simultaneously featuring long-lived emission and good stretchability is challenging because it hard to balance the rigidity flexibility same polymer. Here we present a multiphase engineering for obtaining stretchable phosphorescent by combining stiffness softness well-designed block copolymers. Due microphase separation, copolymers...
Abstract Organic phosphorescent scintillating materials have shown great potential for applications in radiography and radiation detection due to their efficient utilization of excitons. However, revealing the relationship between molecule stacking radioluminescence scintillators is still challenging. This study reports on two phenothiazine derivatives with polymorphism‐dependent phosphorescence radioluminescence. The experiments reveal that significantly affects non‐radiation decay triplet...
Room-temperature phosphorescence (RTP) polymers have demonstrated significant potential for various applications due to their unique luminescent properties. However, most conventional RTP are vulnerable moisture and water, which can disrupt the hydrogen bonding network within polymer accelerate non-radiative decay of triplet excitons phosphors, leading quenching RTP. Herein, we present a universal strategy achieve water-resistant by designing amphiphilic block copolymers with...
Dihydrogen bonding can increase intermolecular interactions and confine molecular motion to prolong the lifetime of ultralong organic phosphorescence.
Ultralong organic phosphorescence strongly depends on the formation of aggregation, while it is difficult to obtain in dilute environments account excessive internal and external molecular motions. Herein, ultralong single-molecule (USMP) at room temperature was achieved monomer state by coassembling biphenyl naphthalene derivatives low density with poly(vinyl alcohol) (PVA), where PVA provides a confined environment stabilize triplet state. Various factors that affect USMP were studied,...
Dynamic room-temperature phosphorescence (RTP) in organic materials is highly sensitive toward changes of external stimulus, representing the expansion static RTP with fixed properties, and has gradually captured considerable attention. Different from big breakthroughs materials, dynamic remain a clear improvement over luminescent mechanisms molecular design rule. Therefore, we have reviewed progress to provide insight into behaviors lifetime, color, intensity, efficiency under different...
Tailoring the morphology of nanocrystals is a promising way to enhance their catalytic performance. In most previous shape-controlled synthesis strategies, surfactants are inevitable due capability stabilize different facets. However, adsorbed block intrinsic active sites nanocrystals, reducing For now, strategies control without still limited but necessary. Herein, facile surfactant-free method developed regulate Cu2O (e.g., solid nanocube, concave cubic framework, branching and framework)...
Compared to planar carbazole, the molecular conjugation of iminodibenzyl (Id) was destroyed by a C-C bond and twisted structure formed, which exhibited blue-shifted ultralong phosphorescence with lifetime 402 ms in crystal under ambient conditions. For presence an oscillating between two benzene rings Id, more than one configuration discovered X-ray single-crystal analysis. Moreover, its color changed from blue green varying excitation wavelength solution at 77 K. Theoretical calculations...
Volatile organic compounds (VOCs) are widespread in our daily life and greatly harmful to human health, as well the environment. To date, it remains a formidable challenge develop highly sensitive visual system for selective detection of VOCs. Herein, we report on metal-free molecule 2,4-di(10 H-phenothiazin-10-yl)-1,3,5-triazine (TDP) with ultralong phosphorescence (UOP) feature visible chemical probe chloroform detection. In pristine solid state, this phosphor shows green UOP lifetime 56...
Two types of branched organic heterostructures with both a fluorescer and metal-free ultralong phosphor were prepared for dual anti-counterfeiting applications.
Abstract Developing ultralong organic phosphorescence (UOP) materials has become a growing concern. To date, it remains formidable challenge to prolong the lifetime of under ambient conditions. A series fluoro‐substituted phenylboronic acid derivatives with UOP feature conditions is reported here. The 2,4‐difluorophenylboronic (24FBP) crystal up 2.50 s, which longest emission among single‐component pure phosphors. Combining experimental and theoretical study, upon stabilization triplet...