A5077797491- Advancements in Battery Materials
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Advanced Battery Materials and Technologies
- Advanced Photocatalysis Techniques
- Graphene research and applications
- Crystal Structures and Properties
- Supercapacitor Materials and Fabrication
- Perovskite Materials and Applications
- Chalcogenide Semiconductor Thin Films
- Catalytic Processes in Materials Science
- Nonlinear Optical Materials Research
- MXene and MAX Phase Materials
- Semiconductor materials and devices
- 2D Materials and Applications
- Organic Light-Emitting Diodes Research
- Luminescence Properties of Advanced Materials
- Porphyrin and Phthalocyanine Chemistry
- Quantum Dots Synthesis And Properties
- Metal-Organic Frameworks: Synthesis and Applications
- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Crystallography and molecular interactions
- Advanced Battery Technologies Research
- Luminescence and Fluorescent Materials
Fuzhou University
2016-2025
Xinyang Normal University
2025
Jiangsu University
2022-2024
Chinese Academy of Sciences
2004-2024
Fujian Institute of Research on the Structure of Matter
2005-2024
Southwest Minzu University
2024
State Ethnic Affairs Commission
2024
National Cheng Kung University
2024
Qilu Normal University
2022-2024
Changhua Christian Hospital
2023-2024
Efficient thermally activated delayed fluorescence (TADF) has been characterized for a carbazole/sulfone derivative in both solutions and doped films. A pure blue organic light emitting diode (OLED) based on this compound demonstrates very high external quantum efficiency (EQE) of nearly 10% at low current density. Because TADF only occurs bipolar system where donor acceptor centered (3)ππ* states are close to or higher than the triplet intramolecular charge transfer ((3)CT) state, control...
Red fluorescent molecules suffer from large, non-radiative internal conversion rates (kIC) governed by the energy gap law. To design efficient red thermally activated delayed fluorescence (TADF) emitters for organic light-emitting diodes (OLEDs), a large rate (kF) as well small difference between lowest singlet and triplet excited states (ΔEST) is necessary. Herein, we demonstrated that increasing distance donor (D) acceptor (A) in intramolecular-charge-transfer promising strategy...
Exploration on the compounds in selenite−borate system led to discovery of a new second-order NLO material, Se2B2O7, with SHG efficiency about 2.2 times that KDP (KH2PO4). Its structure features 3D network helical tunnels, and it is transparent UV visible region. The compound wide band gap semiconductor.
Our work reveals a high dependence on charge-transfer (CT) amounts for the optimal Hartree-Fock percentage in exchange-correlation functional of time-dependent density theory (TD-DFT) and error vertical transition energy calculated by given functional. Using these relations, zero-zero energies first singlet triplet excited states various CT compounds are accurately reproduced. (3)CT locally ((3)LE) well distinguished independently.
Abstract The temperature dependence of luminescence from [Cu(dnbp)(DPEPhos)]BF 4 (dnbp = 2,9‐di‐n‐butylphenanthroline, DPEPhos bis[2‐(diphenylphosphino)phenyl]ether) in a poly(methyl methacrylate) (PMMA) film indicates the presence long‐life green emission arising two thermally equilibrated charge transfer (CT) excited states and one non‐equilibrated triplet ligand center ( 3 LC) state. At room temperature, lower CT state is found to be predominantly populated state, zero‐zero energy this...
Copolymerization with 2,4,6-triaminopyrimidine (TAP) is developed for precise substitution of one nitrogen carbon atom in the triazine ring polymeric g-C3N4. Direct incorporation C4N2 from TAP into network retains structural features g-C3N4, but induces rolling-up g-C3N4 sheets tubular configuration. The band gap energy narrowed 2.7 to 2.4 eV by a negative shift valence photocatalyst, which enhances charge-carrier migration and separation, leading higher photocatalytic activity NO gas...
Highly efficient deep-blue thermally activated delayed fluorescence (TADF) is observed from a charge-transfer compound bis[4-(3,6-dimethoxycarbazole)phenyl]sulfone (DMOC-DPS). In comparison with the previously reported carbazole/sulfone derivative tert-butyl substituents on carbazole donors, DMOC-DPS exhibits much shorter excited-state lifetime in both an aromatic solution and organic thin film, because change of substituent donor affects molecular energy levels first singlet (S1) triplet...
Bismuth has emerged as a promising anode material for sodium-ion batteries (SIBs), owing to its high capacity and suitable operating potential. However, large volume changes during alloying/dealloying processes lead poor cycling performance. Herein, bismuth nanoparticle@carbon (Bi@C) composite is prepared via facile annealing method using commercial coordination compound precursor of citrate. The uniform structure with Bi nanoparticles embedded within carbon framework. nanosized ensures fast...
A novel approach to toughen epoxy resin with lignin, a common waste material from the pulp and paper industry, is presented in this article. First, carboxylic acid-functionalized alkali lignin (AL-COOH) was prepared subsequently incorporated into anhydride-cured networks via one-pot method. The results of mechanical tests show that covalent incorporation rigid AL-COOH can significantly matrix without deteriorating its tensile strength modulus. addition 1.0 wt % gives increases 68 164%...
Herein, we report a charge-transfer complex electrolyte additive, 7,7,8,8-tetracyanoquinodimethane (TCNQ), with high Zn affinity, which was tightly adsorbed on the surface of anode to form dense and robust interfacial layer suppress activity H2O. As verified by comprehensive experimental computational analyses, this could construct Zn–Zn(TCNQ)2 Ohmic contact interface, guide rapid ion/electron transport, ameliorate electric field distribution, inhibit direct between active H2O anode,...
Layered double hydroxides (LDHs) are generally expressed as [M(2+)(1-x)M(3+)(x) (OH)(2)] [A(n-)(x/n)·mH(2)O], where M(2+) and M(3+) divalent trivalent metal cations respectively, A is n-valent interlayer guest anion. Co-Al layered with different sizes have been grown on graphene oxide (GO) via in situ hydrothermal crystallization. In the synthesis procedure, GO partially reduced company formation of LDHs. The morphology structure LDHs/GO hybrids characterized by transmission electron...
Functionalized graphene sheets (FGS)/ZnO nanocomposites were fabricated via thermal treatment method, using oxide as a precursor of graphene, Zn(NH3)4CO3 zinc oxide, and poly(vinyl pyrrolidone) an intermediate to combine with carbon materials. Thermogravimetric analysis, X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM), scanning (SEM) used characterize crystal structure morphology FGS/ZnO nanocomposites. It was shown that the...
Graphene has attracted tremendous interest in reinforcing fillers due to its unique structure and excellent physical properties. However, efficient reinforcement been largely limited because graphene tends agglomerate within a polymer matrix. In this study, direct reduction of oxide (GO) water the presence acid-treated multi-walled carbon nanotubes (t-CNTs) results homogeneous dispersion reduced (r-GO) t-CNT hybrids. The three-dimensional r-GO/t-CNTs hybrids (abbreviated as G-CNT hybrids)...
Hierarchical VS<sub>2</sub> spheres assembled from ultrathin nanosheets exhibited superior electrochemical performance when employed as an anode material in SIBs.
We present density functional calculations showing that monolayer MnSb2S4 is promising as an anode material for Li-, Na-, and Mg-ion batteries, the adsorption of Zn or Al atoms on surface not energetically favorable. The show electron transfer from Li, Na, Mg to empty orbitals nearby Sb S atoms. indicate mechanism followed by a conversion during charging, storage capacities can reach high 879 mA h/g Mg. most favorable diffusion path along b direction; lowest barriers one are 0.18, 0.10, 0.32...
Abstract Cr 3+ doped garnet‐type (A 3 B 2 C O 12 ) near‐infrared (NIR) phosphors is a desirable research hotspot due to their prospective night vision, bioimaging, and plant growth utilizations. Meanwhile, the origin of multisite broad emission yet controversial topic. To resolve trouble, verifying accurately multiple occupancy sites key. Furthermore, it an urgent need for improving external quantum efficiency luminescent thermostability. Herein, in Y Sc Al (YSAO), advanced electron...
Abstract Eu 3+ ‐activated red‐emitting inorganic phosphors have been favored highly for their classical 5 D 0 → 7 F J (J = 0, 1, 2, 3, 4) emissions. However, the fatal drawbacks of poor luminous efficacy and weak 4 transition persist, resulting in ongoing challenge achieving far‐red emission. This research reports series efficient LnTeBO (Ln La , Y Gd ):Eu with anomalously strong transition, from distorted square antiprism [Ln/EuO 8 ]. Both thermal stability can be greatly enhanced via...