A5048362128- Organic Light-Emitting Diodes Research
- Lanthanide and Transition Metal Complexes
- Magnetism in coordination complexes
- Luminescence and Fluorescent Materials
- Photonic and Optical Devices
- Luminescence Properties of Advanced Materials
- Advanced Chemical Physics Studies
- Molecular Junctions and Nanostructures
- Conducting polymers and applications
- Solid-state spectroscopy and crystallography
- Advanced Fiber Laser Technologies
- Crystallography and molecular interactions
- Inorganic Fluorides and Related Compounds
- Atmospheric chemistry and aerosols
- Organometallic Complex Synthesis and Catalysis
- Atmospheric Ozone and Climate
- Organic Electronics and Photovoltaics
- Quantum Dots Synthesis And Properties
- Advanced Photonic Communication Systems
- Nanocluster Synthesis and Applications
- Magnetic and transport properties of perovskites and related materials
- Atomic and Molecular Physics
- Boron Compounds in Chemistry
- Electronic and Structural Properties of Oxides
- Thermodynamic properties of mixtures
Jilin Normal University
2014-2024
Institute of Theoretical Physics
2010-2022
Jilin University
2010-2022
Joint Research Center
2022
State Council of the People's Republic of China
2016
Chinese Academy of Sciences
2013
Changchun Institute of Applied Chemistry
2013
Jilin Medical University
2010
Na3ScF6: 20% Yb3+, 2% Er3+ samples were synthesized with different reaction times and temperatures using the solvothermal method. We carried out a series of tests on Na3ScF6 crystals. The XRD patterns showed that monoclinic phases could be under conditions, doping Yb3+ ions did not change crystal structures. SEM images sizes gradually increased time temperature. fluorescence spectra emission peaks prepared 980 nm near-infrared (NIR) excitation centered at 520 nm/543 654 nm, corresponding to...
A series of heteroleptic cyclometalated Ir(III) complexes for OLEDs application have been investigated theoretically to explore their electronic structures and spectroscopic properties. The geometries, structures, lowest‐lying singlet absorptions, triplet emissions (pdbi) 2 Ir(acac), (F‐pdbi) Ir(dpis), Ir(tpip), Ir(tpip) were with density function theory (DFT) time‐dependent functional (TD‐DFT), where pdbi denotes 1‐(4‐fluorophenyl)‐5‐methyl‐3‐phenyl‐2,3‐dihydro‐1 H ‐1,3‐benzodiazole, acac...
Two boron complexes coordinated with N,O-ligands based on oxadiazole were synthesized, and their structures, thermal behaviors, optical electron transport properties investigated in detail. The results demonstrate that both of the could be used as deep blue emitting materials excellent transporting materials. mobilities, measured by time-of-flight (TOF) technique, are 2.09 × 10−4 7.27 10−6 cm2 V−1 s−1. To understand optoelectronic better, theoretical calculations electronic orbitals carried...
The luminescent spectra of boron–nitrogen (BN) superatoms under the influence small molecule excitation remain unexplored, yet hold promising prospects for application in materials. This study employs density functional theory to investigate absorption and fluorescence emission molecules (pyrazine, pyridine, benzene) adsorbed on B12N12 superatoms. findings reveal formation stable chemisorption structures, namely pyrazine-B12N12 pyridine-B12N12, while benzene forms a physisorption structure...
Abstract The series of heteroleptic cyclometalated Ir(III) complexes for organic light‐emitting display application have been investigated theoretically to explore their electronic structures and spectroscopic properties. geometries, structures, the lowest‐lying singlet absorptions triplet emissions Ir‐(pmb) 3 designed models Ir‐(Rpmb) 2 pic were with density functional theory (DFT)‐based approaches, where pmb = phenyl‐methyl‐benzimidazolyl, picolinate, R H/F. Their in ground excited states...
Selectively wettable porous membranes have been demonstrated to be outstanding energy-efficient materials for use in continuous liquid separation (including separating industrial oils or common organic solvents), environmental protection, and the chemical industry. The of ionic liquids (ILs), which is important synthesis engineering, has less explored. Herein, we report an on-demand liquid-passed-through strategy efficient ILs from their aqueous solutions via utilization bioinspired...
A series of heteroleptic cyclometalated Ir(III) complexes for organic light‐emitting diodes (OLEDs) application have been investigated theoretically to explore their electronic structures and spectroscopic properties. The geometries, the structures, lowest‐lying singlet absorptions triplet emissions Ir(dfppy) 2 (tpip), Ir(tfmppy) designed models Ir(ppy) (tpip) were with density functional theory (DFT)‐based approaches, where ppy = 2‐phenylpyridine, dfppy 4,6‐difluorophenylpyridine, tfmppy...
Electronic states of the CH3Se and its cation CH3Se+ have been studied using complete active space self-consistent field (CASSCF) multiconfiguration second-order perturbation theory (CASPT2) methods in conjunction with ANO-RCC(TZP) basis set. To investigate Jahn−Teller effect on radical, Cs symmetry was used for calculations. The results show that is very small (69 cm−1) 12A′ state slightly more stable than 12A′′ (8 cm−1). has found to a ground C−Se bond distance 1.975 Å. computed stretching...
A series of heterocyclic Ir(III) complexes used in organic light‐emitting diode (OLED) materials with low‐efficiency roll‐off performance have been studied theoretically. Their electronic structures, spectral properties, and their application value OLEDs are discussed. The geometries, lowest‐lying singlet absorptions, triplet emissions (dmdppr‐dmp) 2 Ir(dibm), the theoretically designed models Ir(acac), Ir(tpip), (dmdppr‐Fdmp) Ir(tpip) were investigated density‐functional‐theory‐based...
Small fluoride nanoparticles (NPs) with strong down-conversion (DC) luminescence at 1.5 μm are quite desirable for optical fiber communication systems. Nevertheless, a problem exists regarding how to synthesize small NPs DC emission μm. Herein, we propose an approach improve of BaLuF5:Yb3+,Er3+ by way combining doping Ce3+ ions and coating multiple BaLuF5: Yb3+ active-shells. We prepared the BaLuF5:18%Yb3+,2%Er3+,2%Ce3+ through high-boiling solvent method. The effect concentration on was...
In this work, we synthesized pure tetragonal phase LiYF 4 microcrystals by a hydrothermal method. the reaction, sodium ions acted as an intermedium species. The long axis of quasi-octahedron crystals was about 5 to 20 micrometers. Strong UV 1 I 6 → 3 H (~291 nm), F (~346 and D 2 (~362 nm) blue emissions (~450 G (~475 could be observed in our samples. We see luminescence from naked eyes daylight even if pump power 980 nm laser diode less than 10 mW. Obvious energy level splitting also...
The AlCCH radical is a photolysis product of the aluminum-acetylene adducts and has been considered as molecule with potential interest in astrophysics. In this study, low-lying electronic states radical, cation, anion have studied by using complete active space self-consistent field multiconfigurational second-order perturbation theory. geometrical parameters, electron configurations, excitation energies, oscillator strengths, harmonic vibrational frequencies are calculated C(S) symmetry....