A5029101105- High-pressure geophysics and materials
- Perovskite Materials and Applications
- Boron and Carbon Nanomaterials Research
- Energetic Materials and Combustion
- Luminescence Properties of Advanced Materials
- Quantum Dots Synthesis And Properties
- Diamond and Carbon-based Materials Research
- Inorganic Chemistry and Materials
- Crystallography and molecular interactions
- ZnO doping and properties
- Organic Light-Emitting Diodes Research
- Electromagnetic wave absorption materials
- Advanced Photocatalysis Techniques
- MXene and MAX Phase Materials
- Metal and Thin Film Mechanics
- Metamaterials and Metasurfaces Applications
- Advanced Antenna and Metasurface Technologies
- Gas Sensing Nanomaterials and Sensors
- Solid-state spectroscopy and crystallography
- 2D Materials and Applications
- Copper-based nanomaterials and applications
- Nonlinear Optical Materials Research
- Electronic and Structural Properties of Oxides
- Chalcogenide Semiconductor Thin Films
- Graphene research and applications
Jiangsu University of Science and Technology
2023-2024
Linyi University
2018-2024
University of Tulsa
2017-2024
Shanghai Dianji University
2024
East China Normal University
2024
University of Electronic Science and Technology of China
2021-2023
Beijing Institute of Technology
2019-2023
Jiangsu Normal University
2023
Jilin University
2008-2020
State Key Laboratory of Superhard Materials
2013-2020
Disordered structures of boron nitride (BN), graphite, carbide (BC), and carbon (BCN) systems are considered important precursor materials for synthesis superhard phases in these systems. However, phase transformation such can be achieved only at extreme pressure–temperature conditions, which is irrelevant to industrial applications. Here, the transition from disordered nanocrystalline hexagonal (h)BN wurtzitic (w)BN was found room temperature under a pressure 6.7 GPa after applying large...
Abstract The effect of rare earth (RE) single atoms on photocatalytic activity is very complex due to its special electronic configuration, which leads few reports the RE atoms. Here, Dy 3+ atom composite photocatalysts are successfully constructed based both role and advantages CdS/g‐C 3 N 4 heterojunction in field photocatalysis. results show that an efficient way electron transfer provided promote charge separation, dual functions CO 2 molecular activation rare‐earth f levels as transport...
Inorganic metal halide-based perovskites have tremendous potential for use in solid-state lighting due to their earth-abundant elements, solution processability, high photoluminescence quantum yield (PLQY), and tunable band gap energy emission. However, the stability issue remains a challenge. Here, we report of 3D printing technique fabricate resin-perovskite color conversion layers bridge between material development device applications. This not only simplified fabrication process but...
Two-dimensional tin selenide (SnSe) nanosheets were synthesized using a plasma-assisted direct current arc discharge method. The structural characterization indicates that the are single-crystalline with an average thickness of ~25 nm and lateral dimension 500 nm. high pressure behaviors as-synthesized SnSe investigated by in situ high-pressure synchrotron angle-dispersive X-ray diffraction Raman scattering up to ~30 GPa diamond anvil cells at room temperature. A second-order isostructural...
Additional electrons can drastically change the bonding trend of light elements. For example, N atoms in alkali metal azides form linear N3− anions instead N2 molecules with introduction additional electrons. The effect on polymerization under pressure is important and thus far unclear. Using first principles density functional methods particle swarm optimization structure search algorithm, we systematically study evolution LiN3 structures pressures up to 600 GPa. A stable featuring...
Recently, lead halide perovskite nanocrystals (NCs) have gained tremendous attention in optoelectronic devices due to their excellent optical properties. However, the toxicity of limits practical applications. Here, synthesis Zn2+-alloyed CsZnxPb1-xX3 (up 15%) NCs is reported achieve lead-reduced white light-emitting diodes (WLEDs). The incorporation Zn2+ into CsPbX3 host results a lattice contraction, without altering structure and morphology, which has direct effect on blue-shifts...
Abstract All‐inorganic halide perovskites (CsPbX 3 , X = Cl − Br and I ) are brought to the forefront of research focus in field modern lighting technology. However, due toxic element (Pb 2+ ), environmentally friendly white‐light emissions difficult achieve, thus limiting their practical applications. Herein, high‐quality Mg ‐alloyed CsPb 1− x (up 20%) nanocrystals (NCs) synthesized. The structural optical properties investigated. application these NCs white‐light‐emitting diodes (LEDs) is...
Abstract It is still challenging to design a stable and efficient catalyst for visible‐light CO 2 reduction. Here, Er 3+ single atom composite photocatalysts are successfully constructed based on both the special role of advantages Zn GeO 4 /g‐C 3 N heterojunction in photocatalysis reduction . Especially, :Er obtained by situ synthesis not only more conducive tight junction g‐C , but also favorable anchor rare‐earth atoms. Under irradiation, shows than five times enhancement catalytic...
Alkali metal azides can be used as starting materials in the synthesis of polymeric nitrogen, a potential high-energy-density material. The structural evolutionary behaviors nitrogen CsN3 have been studied up to 200 GPa using particle swarm optimization structure search combining with density functional theory. Three stable new phases C2/m, P21/m, and P-1 at pressure 6, 13, 51 are identified for first time. phase transition chain like (P-1 phase) occurs modest GPa, azide ions N3 (-) (linear...
The phase analysis of sodium azide (NaN3) has been investigated by in situ synchrotron X-ray diffraction measurements a diamond anvil cell up to 52.0 GPa at room temperature. Three pressure-induced transitions were observed. transition pressures determined be 0.3, 17.3, and 28.7 verified three different pressure transmitting media. first high phase, α-NaN3 (0.3 ∼ 17.3 GPa), was identified monoclinic with C2/m space group. β-NaN3 is second-order transition, accompanied the shearing Na-layers...
A naked cyclo-N5– salt has yet to be recovered ambient conditions, precluding its application as a high-energy density material for explosive or propulsion applications. Here, we suggest simple route the synthesis of metal via compressing CuN6. Using first-principles calculations with structural search, predict CuN5 compound anion that is energetically favorite in pressure range 50–100 GPa. At comprises alternant-connected anions and Cu+ ions, forming zigzag chain. The copper...
Comprehensive studies were carried out to investigate potential applications of hybrid metal halide perovskites in next-generation white light-emitting diodes (LEDs). We investigated the effect spectral power distributions on color quality light provide guidelines for designing LED devices. The was obtained by combining appropriate ratios blue, green, yellow, and red emitted from [MAPb(BrxI1-x)3]. characteristics evaluated calculating CIE 1931 chromaticity coordinates, correlated temperature...
In the heterogeneous SAC system (SrTiO<sub>3</sub>:Er<sup>3+</sup>/g-C<sub>3</sub>N<sub>4</sub>), single Er atoms perfectly play multiple roles as interfacial electronic transfer bridges and active sites for CO<sub>2</sub>activation.