A5055507579- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Luminescence and Fluorescent Materials
- Organic Light-Emitting Diodes Research
- Organic Electronics and Photovoltaics
- Liquid Crystal Research Advancements
- Photochromic and Fluorescence Chemistry
- Molecular Sensors and Ion Detection
- Perovskite Materials and Applications
- Crystallography and molecular interactions
- Conducting polymers and applications
- Polydiacetylene-based materials and applications
- Photoreceptor and optogenetics research
- Synthesis and properties of polymers
- Photonic Crystals and Applications
- Porphyrin and Phthalocyanine Chemistry
- Silicone and Siloxane Chemistry
- Pulmonary Hypertension Research and Treatments
- Advanced Sensor and Energy Harvesting Materials
- Nanoplatforms for cancer theranostics
- Advanced Polymer Synthesis and Characterization
- Synthesis and Properties of Aromatic Compounds
- Advanced Fluorescence Microscopy Techniques
- Ultrasound in Clinical Applications
- biodegradable polymer synthesis and properties
University of South Wales
2024-2025
Furman University
2023
Wuhan National Laboratory for Optoelectronics
2010-2021
Huazhong University of Science and Technology
2010-2021
Montreal Heart Institute
2021
Université de Montréal
2020-2021
University of Bolton
2020
Sun Yat-sen University
2017-2019
State Key Laboratory of Optoelectronic Materials and Technology
2017-2018
Durham University
2014-2018
A panoramic review of the latest progress regarding mechano-responsive luminescence tetraphenylethylene derivatives with aggregation-induced emission properties.
Flexible hydrogen-bonded organic frameworks (FHOFs) are quite rare but promising for applications in separation, sensing and host-guest chemistry. They difficult to stabilize, making their constructions a major challenge. Here, flexible HOF (named 8PN) with permanent porosity has been successfully constructed. Nine single crystals of 8PN different pore structures obtained, achieving large-scale void regulation from 4.4% 33.2% total cell volume. In response external stimuli, multimode...
Two heavy atom-free white-light emitting luminophores exhibit fluorescence–phosphorescence dual-emission and are multi-stimuli responsive at room temperature.
Abstract Soft luminescent materials are attractive for optoelectronic applications, however, switching dominant chromophores property enrichment remains a challenge. Herein, we report the first case of soft organic molecule (DOS) featuring selective expression chromophores. In response to various external stimuli, different DOS can take turns working through conformation changes, exhibiting full‐colour emissions peaking from 469 nm 583 ten individual single crystals. Dynamic triplet‐exciton...
Both photoswitchable fluorescent nanoparticles and photoactivatable proteins have been used for super-resolution far-field imaging on the nanometer scale, but photoactivating wavelength such photochemical events generally falls in near-UV (NUV) region (<420 nm), which is not preferred cellular imaging. However, using two near-IR (NIR) photons that are lower energy, we can circumvent problems replace NUV single-photon excitations (e.g., 390 nm) with NIR two-photon 780 nm). Thus, demonstrated...
By increasing the number of benzene rings in pendant group, dielectric constant as-prepared polyimides can be effectively decreased.
RIR hypothesis as the mechanism of aggregation-induced emission phenomenon is validated <italic>via</italic> synthesis <italic>ortho</italic>-methyl tetraphenylethenes.
We report a simple design and synthesis of donor-acceptor tetraphenylethene-naphthalimide (TPE-NI) dyad, in which TPE acts both as an electron-donor for intramolecular charge transfer (ICT) activator aggregation induced emission (AIE). Strong solvent-dependent photoluminescence covering almost the whole visible spectrum AIE its nanoparticle state compared to solution are demonstrated.
Abstract It is discovered that “bridging” traditional persistent room‐temperature phosphorescence (pRTP) dibenzofuran moieties by intermolecular hydrogen bonding can induce interesting photophysical properties. The light‐emitting material 4‐(4‐((4‐methoxyphenyl)sulfonyl)phenyl)dibenzo[b,d]furan (SOBF‐OMe) synthesized and excitingly shows novel dual‐emissive afterglow properties in which orange pRTP (at ≈580 nm, 627 ms) from the moiety another blue ultralong charge transfer emission (≈476 204...
This study provides a reliable strategy to tune the mechanoluminescent colors by adjusting weak intermolecular interactions.
An original design strategy for the preparation of polymers with a low dielectric constant is presented. The key to this taking most advantage secondary relaxation behavior polymer chains obtain more free volume in bulk, which can effectively reduce polymer. By using strategy, we have successfully synthesized novel polyimide TmBPHF pendant group that consists biphenyl unit attached meta-position phenyl ring part triaryl unit. intrinsic k and loss values are 2.09 0.0012 at 10 kHz,...
We report the synthesis of novel amorphous fluorene-based fluorophores that have been end-capped with tetraphenylethene (TPE). Although in solid state show bright cyan fluorescence high (68%) photoluminescence quantum efficiency (PLQE), strong quenching is observed solution low PLQE values ranging from 0.3% to 2.1%. When were added a 90% water–THF solvent mixture nanoparticles formed, which was confirmed by Dynamic Light Scattering (DLS) and Atomic Force Microscopy (AFM). Subsequent...
Abstract Mechanoluminescence (ML) materials are environmentally friendly and emit light by utilizing mechanical energy. This has been utilized in sources, displays, bioimaging, advanced sensors. Organic ML strongly limited to application situ unrepeatable ML. Now, solar‐renewable organic can be formed introducing a soft alkyl chain into an unit. For the first time, from these polycrystalline thin films iteratively produced simply recrystallizing fractured crystal after contactless exposure...
An <italic>ortho</italic>-substituent design strategy promoting steric hindrance has afforded excellent AIE-TADF emitters, and high-efficiency TADF-OLEDs have been subsequently demonstrated.
A methyl-substitution strategy is presented to prolong the phosphorescence lifetime due a decrease in fractional free volumes.
Interesting purely organic persistent room-temperature phosphorescence induced by not only photoirradiation but also mechanical action has been presented.
Due to inefficient molecular design strategies, two-photon-excited ultralong organic room temperature phosphorescence (TPUOP) has not yet been reported in single-component materials. Herein, we present an innovative method by dual-channel triplet harvesting obtain the first bright TPUOP molecule with a lifetime of 0.84 s and quantum efficiency 16.6%. In compound o-Cz donor acceptor units are connected at ortho position benzophenone, showing intramolecular space charge transfer. Therefore,...
A general approach to the design and synthesis of a new series geminal-substituted tetraarylethene (g-TAE) chromophores with aggregation-induced emission (AIE) properties has been developed via Corey–Fuchs reaction subsequent Suzuki/Stille coupling reactions. To demonstrate synthetic simplicity versatility this approach, fluorophores diverse electronic characteristics have synthesized. The validation geminal structure bulky steric effect on bond lengths dihedral angles is further confirmed...
Abstract This study reveals the mechanism of dual‐emission properties for asymmetrical diphenylsulfone and diphenylketone derivatives. A series derivatives with are designed synthesized. By single crystal structure analyses, various photophysical studies, 2D 1 H– H NOSEY NMR lower energy emission bands in spectra successfully assigned to hydrogen‐bonding‐assisted intermolecular charge transfer emission. The these compounds can easily be tuned both solid state solution by destroying or...
Blue, green, and red polymerizable light-emitting liquid crystals have been patterned photolithographically in a full-color liquid-crystal electroluminescent display (see Figure). A new hole-transporting photoalignment copolymer is also reported the spatial patterning of polarization direction emission demonstrated.
Light-emitting liquid crystals for organic light-emitting diodes (OLEDs) require low-temperature crystal phases room-temperature processing and a range of molecular energies electron hole injection, as well tunable color purity multicolor OLEDs. We report number polymerizable (reactive mesogens) based on 2,7-disubstituted-9,9-dialkylfluorene, whose energy levels can be tuned optimized charge injection light emission. As consequence these systematic property/structure investigations small...
We report the synthesis of a dithienylethene–tetraphenylethene (DTE–TPE) conjugated photochromic fluorophore which simultaneously exhibits aggregation-induced emission and reversible fluorescence switching. Photochromic DTE–TPE turns cyan-blue after 5 s UV irradiation strong green at 520–540 nm upon excitation with visible light when present in nanoparticles solid state, contrast to non-fluorescence solution. switching under alternating (wavelengths greater than 440 nm), state. The...