A5045186792- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Organic Light-Emitting Diodes Research
- Luminescence and Fluorescent Materials
- Organic Electronics and Photovoltaics
- Crystallography and molecular interactions
- Perovskite Materials and Applications
- Synthesis and Properties of Aromatic Compounds
- Metal-Organic Frameworks: Synthesis and Applications
- Porphyrin and Phthalocyanine Chemistry
- Organic and Molecular Conductors Research
- Graphene research and applications
- Covalent Organic Framework Applications
- Magnetism in coordination complexes
- Quantum optics and atomic interactions
- Nanowire Synthesis and Applications
- Carbon dioxide utilization in catalysis
- Molecular Junctions and Nanostructures
- Polyoxometalates: Synthesis and Applications
- Synthesis and properties of polymers
- Supramolecular Chemistry and Complexes
- Advanced Photocatalysis Techniques
- Advanced Nanomaterials in Catalysis
- Semiconductor Lasers and Optical Devices
- Silicon Nanostructures and Photoluminescence
King University
2025
Peking University
2025
Soochow University
2020-2024
Shanghai Normal University
2017-2021
Nankai University
2012-2014
Collaborative Innovation Center of Chemical Science and Engineering Tianjin
2014
A new Cu(I) metal–organic framework, {[Cu(pytpy)]·NO3·CH3OH}∞ (1), which is a 4-fold interpenetrating 3D framework with (10,3)-b topology, has been synthesized by self-assembly of Cu(NO3)2·3H2O 2,4,6-tris(4-pyridyl)pyridine (pytpy) in mixed-solvent. The guest methanol molecules the channels 1 could be replaced water via single-crystal-to-single-crystal (SC–SC) process, and hydrated complex serve as host for sensing anions different geometries can conveniently recognized visually. Moreover,...
A multiple resonance thermally activated delayed fluorescence (MR-TADF) molecule with a fused, planar architecture tends to aggregate at high doping ratios, resulting in broad full width half maximum (FWHM), redshifting electroluminescence peaks, and low device efficiency. Herein, we propose mono-substituted design strategy by introducing spiro-9,9'-bifluorene (SBF) units different substituted sites into the MR-TADF system for first time. As classic steric group, SBF can hinder...
Three emissive bridged-triphenylamine derivatives are designed and synthesized by incorporating carbon (DQAO), oxygen (OQAO), sulfur (SQAO) atoms with two carbonyl groups. The fully bridged geometry unique frontier molecular orbital distribution reveal its potential as narrowband thermally activated delayed fluorescence emitters. DQAO-, OQAO-, SQAO-based organic light-emitting diodes exhibit the maximum external quantum efficiency (EQEmax) of 15.2%, 20.3%, 17.8% for blue, green, yellow, respectively.
Abstract Metal halide perovskite semiconductors have demonstrated remarkable potentials in solution‐processed blue light‐emitting diodes (LEDs). However, the unsatisfied efficiency and spectral stability responsible for trap‐mediated non‐radiative losses phase segregation remain primary unsolved challenges LEDs. In this study, it is reported that a fluorene‐based π‐conjugated cationic polymer can be blended with semiconductor to control film formation optoelectronic properties. As result,...
ConspectusThe development of cutting-edge optoelectronic devices is rapidly changing science and technology. The organic light-emitting diodes (OLEDs), as one the most applicable techniques electronics, are experiencing process materials' upgrade. Among all units to construct OLED materials, spiro structure its derived compounds have been widely studied due good thermal stability unique orthogonally rigid structure. It had shown great potential in first generation fluorescent OLEDs (FOLEDs)...
Harvesting the narrow bandgap excitons of charge-transfer (CT) complexes for achievement near-infrared (NIR) emission has attracted intensive attention its fundamental importance and practical application. Herein, triphenylene (TP)-2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4 TCNQ) CT organic complex is designed fabricated via supramolecular self-assembly process, which demonstrates NIR with a maximum peak 770 nm photoluminescence quantum yield (PLQY) 5.4%. The segregated...
Two water-insoluble isostructural inorganic–organic hybrid materials, [M(pytpy)2Mo4O13]∞ (M = Cu 1, Ni 2, pytpy 4′-(4-pyridyl)-4,2′:6′,4″-terpyridine), have been prepared by in situ formation of the Mo4O132– clusters from decomposition H3PMo12 under hydrothermal conditions. Both two complexes display three-dimensional (3D) "pillar-layer" frameworks based on bimetal-oxide layers pillared ligands. Topological analysis revealed that 3D can be simplified into (3,4,4)-connected...
A new manganese(II) coordination polymer, [Mn2(L1)4/3(L2)2]n (1) (L1 = 4′-(4-pyridyl)-4,2′:6′,4″-terpyridine, H2L2 (4-phenyl)-2,6-bis(4-carboxyphenyl)pyridine), has been prepared and structurally characterized. Complex 1 is a 2-fold interpenetrated three-dimensional framework, which to our knowledge represents the first interpenetration example of framework with unique (3,6)-connected loh1 topology. Furthermore, magnetic properties photocatalytic activity have investigated. As result,...
Abstract Multi‐layer π‐stacked emitters based on spatially confined donor/acceptor/donor (D/A/D) patterns have been developed to achieve high‐efficiency thermally activated delayed fluorescence (TADF). In this case, dual donor moieties and a single acceptor moiety are introduced form two three‐dimensional (3D) emitters, DM‐BD1 DM‐BD2, which rely spatial charge transfer (CT). Owing the enforced face‐to‐face D/A/D pattern, effective CT interactions realized, lead high photoluminescence quantum...
Abstract White‐light‐emissive organic micro/nanostructures hold exotic potential applications in full‐color displays, on‐chip wavelength‐division multiplexing, and backlights of portable display devices, but are rarely realized core/shell heterostructures. Herein, through regulating the noncovalent interactions between semiconductor molecules, a hierarchical self‐assembly approach horizontal epitaxial‐growth is demonstrated for fine synthesis core/mono‐shell microwires with multicolor...
A narrowband blue CP-TADF emitter with a rigid hetero-helicene structure (QAO-PhCz) was synthesized and characterized. QAO-PhCz exhibits good electroluminescence performance (EQE = 14.0%) narrow FWHM. The enantiomers of display CPL CPEL properties |glum| |gEL|values up to 1.1 × 10-3 1.5 10-3, respectively.
Abstract Conformational engineering is essential to further reinforce the luminescent properties of thermally activated delayed fluorescence (TADF) materials featuring through‐space charge transfer (TSCT) characteristics. Herein, two TSCT‐TADF emitters (8MeDM‐B and 8FDM‐B) with methyl fluorine moieties substituted at C8 site rigid spiro‐fluorene bridge reported. Derivation first proposed control molecular configuration ability indirectly tune intramolecular interaction between donor acceptor...
This review summarizes the mechanisms and development of sensitized OLEDs, with phosphorescent, TADF, exciplex materials as sensitizers.
In this work, we propose pure hydrocarbon materials as universal hosts for high-efficiency red, green and blue phosphorescent organic light-emitting diodes.
Abstract White organic light‐emitting diodes (WOLEDs) composed of conventional fluorophores possess color purity, low efficiency roll‐off, and rare metal absence, but suffer from theoretical limits due to the lack triplet utilization. Due different diffusion distance for singlets triplets, multiple Förster resonance energy transfer (FRET) channels can be adequately built up. Herein, besides complementary component, a blue fluorescence layer, hosted by pure hydrocarbon material SF4‐TPE, is...
Noncovalent spatial interaction has become an intriguing and important tool for constructing optoelectronic molecules. In this study, we linearly attached three conjugated units in a multi π-stacked manner by using just one trident bridge based on indeno[2,1-b]fluorene. To achieve structure, improved the synthetic approach through double C-H activation, significantly simplifying preparation process. Due to proximity of C10, C11, C12 sites indeno[2,1-b]fluorene, derived two novel...
Two new porous coordination polymers (PCPs) based on different nanosized C3 symmetry ligands and Zn(II)-benzotriazolate clusters have been synthesized solvothermally. Both of the desolvated complexes show selective uptake CO2 over CH4 N2 at ambient temperature.
Abstract Organic materials with violet electroluminescence are highly interesting for organic light‐emitting diode (OLED) application. However, the design and synthesis of new molecules combining desirable emission high luminous efficiency a challenging task. Here, three novel consisting pyrene unit rigid skeleton, namely TFPy2, TFPy3, TFPy4, developed violet‐emitting OLEDs (VOLEDs). These emitters exhibit excellent thermal stability narrow full width at half‐maximum (FWHM) photoluminescence...
A hetero-bichromophore thermally activated delayed fluorescence (TADF) emitter named BOQAO was designed and synthesized, which consists of two multi-resonance TADF (MR-TADF) cores, t BuBO BuQAO.
Alkyne metathesis was applied to yield a sp<sup>2</sup>/sp hybridized graphyne-like porous carbon-rich network material with tilted 3D channels and showed selective absorption of CO<sub>2</sub> over N<sub>2</sub>.
Red through-space charge transfer thermally activated delayed fluorescence (TSCT TADF) materials named SAF36DCPP and SAF27DCPP with sandwiched structures were synthesized. Single crystals indicated that the intramolecular C-H···π interactions play a vital role in rigidifying structure, which results yield of 63% for compared to 40% SAF27DCPP. Organic light-emitting diodes as emitter realized maximum external quantum efficiency 16.12%.
This work presents the first example of heteroatoms embedded terrylene diimides (TDIs), which were synthesized from BN‐embedded imide building block in a modular manner. Through control amount and orientations BN unit(s), manipulation dipole moments obtained (BN‐TDIs) was achieved, turns extended fluorescence BN‐TDIs to near infrared region. The structures established via single crystal X‐ray diffractions. Stronger carbonyl‐π interactions observed for their compared with that TDI, could be...
This work presents the first example of heteroatoms embedded terrylene diimides (TDIs), which were synthesized from BN‐embedded imide building block in a modular manner. Through control amount and orientations BN unit(s), manipulation dipole moments obtained (BN‐TDIs) was achieved, turns extended fluorescence BN‐TDIs to near infrared region. The structures established via single crystal X‐ray diffractions. Stronger carbonyl‐π interactions observed for their compared with that TDI, could be...