A5066144925- Organic Light-Emitting Diodes Research
- Luminescence and Fluorescent Materials
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Magnetism in coordination complexes
- Nanocluster Synthesis and Applications
- Molecular Junctions and Nanostructures
- Lanthanide and Transition Metal Complexes
- Polydiacetylene-based materials and applications
- Organometallic Complex Synthesis and Catalysis
- Photochemistry and Electron Transfer Studies
- Radical Photochemical Reactions
- Synthesis and Properties of Aromatic Compounds
- Porphyrin and Phthalocyanine Chemistry
- Molecular Sensors and Ion Detection
- bioluminescence and chemiluminescence research
Changzhou University
2018-2024
Materials Science & Engineering
2018-2021
Xiangtan University
2012-2013
Circularly polarized thermally activated delayed fluorescence (CP-TADF) and multiple-resonance (MR-TADF), which exhibit novel circularly luminescence excellent color fidelity, respectively, have gained immense popularity. In this study, integrated CP-TADF MR-TADF (CPMR-TADF) are prepared by strategic design synthesis of asymmetrical peripherally locked enantiomers, separated denoted as (P,P″,P″)-/(M,M″,M″)-BN4 (P,P″,P″)-/(M,M″,M″)-BN5 TADF light (CPL) properties. As the entire molecular...
The correlation between molecular packing structure and its room-temperature phosphorescence (RTP), hence rational promotion of the intensity, remains unclear. We herein present racemism enhanced RTP chiral chromophores by 2,2-bis-(diphenylphosphino)-1,1-napthalene (rac-BINAP) in comparison to counterparts. result shows that rac-BINAP crystal with denser density, consistent a long standing Wallach's rule, exhibits deeper red at 680 nm than cross alternative R- S- forms significantly retards...
Dinuclear Pt(III) complexes were commonly reported to have short-lived lowest-lying triplet states, resulting in extremely weak or no photoluminescence. To overcome this obstacle, a new series of dinuclear complexes, named Pt2a-Pt2c, strategically designed and synthesized using donor (D)–acceptor (A)-type oxadiazole-thiol chelates as bridging ligands. These possess d7–d7 electronic configuration exhibit intense phosphorescence under ambient conditions. Among them, Pt2a exhibits orange...
A novel series of excited-state intramolecular proton transfer (ESIPT) emitters, namely, DPNA, DPNA-F, and DPNA-tBu, endowed with dual hydrogen bonds, were designed synthesized. In the condensed phase, DPNAs exhibit unmatched absorption emission spectral features, where minor 0–0 peak becomes a major one in emission. Detailed spectroscopic dynamic approaches conclude fast ground-state equilibrium among enol–enol (EE), enol–keto (EK), keto–keto (KK) isomers. The ratio can be fine-tuned by...
Abstract Hybridized local and charge‐transfer (HLCT) excited‐state emitters can effectively utilize non‐radiative triplet excitons through high‐lying reverse intersystem crossing (hRISC), but they are mostly limited to the donor‐ π ‐acceptor type molecules. It is a great challenge develop high‐performance near‐ultraviolet (NUV) with narrow‐band emission by HLCT due large carrier injection barriers high energy. In this work, incorporating planar multi‐resonance (MR) skeleton of oxygen‐bridged...
Metallomesogens – liquid crystals containing metal centers have attracted much interest owing to their interesting magnetic and electro-optical properties. Due the theoretical 100% internal quantum efficiency, here, a brief overview of recent research on platinum/iridium-based metallomesogens including molecular design structure-property relationships is reported.
A type of isomeric dinuclear platinum complex (C^N)<sub>2</sub>Pt<sub>2</sub>(μ-C<sub>8</sub>PhOXT)<sub>2</sub> is synthesized with different C^N isomers naphthyl-quinoline. These complexes exhibit tunable emission emissive efficiencies.
Tuning the acceptor–donor assembly strategy, which is to lock benzophenone acceptor and stepwise change donors, demonstrates that charge transfer dominates full width at half maximum of multiple resonance (MR) emitters.
Two new zig-zag type di- and mono-nuclear platinum(<sc>ii</sc>) complexes of (BuPh-BDIQ)Pt<sub>2</sub>(dpm)<sub>2</sub> (BuPh-BDIQ)Ptdpm were synthesized characterized by using a cyclometalating ligand BuPh-BDIQ.
Clearly polarized electroluminescence was obtained from ionic iridium complex-based metallomesogens.
Two Pt( ii ) complexes with high-efficiency deep-red to NIR emission are gained by incorporating BO skeleton into azacycles. The EQE max of (BOiqn) 2 Pt and (BOPy) doped OLED is 3.84% at 656/710 nm 7.99% 624/660 nm, respectively.
A novel core–shell-typed Ir( iii ) complex with a rigid C^N coordinated core of DBPz and an amplifying peripheral shell t BuTPA. Its doped OLEDs exhibited 714 nm emission outstanding EQE 12.25% recorded radiance emittance 45 330 mW Sr −1 m −2 .
Polarized phosphorescence was achieved from platinum-based metallomesogens containing a Pt(4,6-dfppy)(acac) skeleton.
Two novel distinct multi-stimuli responsive mechanochromic luminescence (MCL) materials were prepared with an asymmetric D–A–D′ scaffold.
To investigate the influence of fluoride phenyl side-chains onto a quinoxaline (Qx) unit on photovoltaic performance narrow bandgap (NBG) polymers, herein, two novel NBG copolymers, PBDTT-DTQx and PBDTT-DTmFQx, were synthesized characterized. 2-ethylhexylthiothiophene-substituted benzodithiophene (BDTT), 2,3-diphenylquinoxaline (DQx) [or 2,3-bis(3-fluorophenyl)quinoxaline (DmFQx)] 2-ethylhexylthiophene (T) used as electron donor (D) unit, electron-withdrawing acceptor (A) π-bridge,...
External quantum efficiency (EQE), color rendering index (CRI), correlated temperature (CCT), and spectral stability are key challenges for constructing high-performance white organic light-emitting diodes (WOLEDs) with a simple device structure. Herein, in order to resolve these issues, we primarily employed thermally activated delayed fluorescence (TADF) emitter of CzAcSF as host dinuclear platinum (III) complex (Pt-1) guest construct solution-processed single-emitting layer WOLEDs at low...
High-efficiency narrowband near-ultraviolet (NUV) organic light-emitting diodes with high color purity have currently encountered great challenges. Here, using butyl (Bu) and cyanogen (CN) substituted strategy in the simplest polycyclic aromatic hydrocarbons of indolocarbazole (ICz), two simple emitters BuICz BuICzCN were demonstrated. This was observed to enable both realize NUV emission at 380–381 nm a small full width half maximum (FWHM) 21–23 photoluminescent quantum efficiency 50%–59%...
Tadf Emitters Circularly polarized thermally activated delayed fluorescence (CP-TADF) and multiple-resonance (MR-TADF) properties are integrated into new CPMR-TADF materials by Xiugang Wu, You-Xuan Zheng, Weiguo Zhu, Pi-Tai Chou, co-workers, as described in article number 2105080. Organic light-emitting diodes based on these emitters attain a three-in-one advantage simultaneously: high efficiency, color purity, circular light.
Nitrogen-containing polycyclic aromatic hydrocarbons (PAHs) have exhibited a great potential in deep-blue emission of organic light-emitting diodes (OLEDs), but achieving their efficient narrowband remains an enormous challenge with excellent color purity and high external quantum efficiency (EQEs) contemporaneously. Herein, two novel deep-blue-emitting diindolophenazine derivatives OCzN MCzN were obtained, which carbazole was respectively grafted ortho- meta-position phenazine. It is found...