A5116130591- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Graphene research and applications
- Advanced Antenna and Metasurface Technologies
- Conducting polymers and applications
- Metamaterials and Metasurfaces Applications
- Electromagnetic wave absorption materials
- Semiconductor Quantum Structures and Devices
- Magnetic and transport properties of perovskites and related materials
- 2D Materials and Applications
- Molecular Junctions and Nanostructures
- Ferroelectric and Piezoelectric Materials
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced Semiconductor Detectors and Materials
- Advanced biosensing and bioanalysis techniques
- Antenna Design and Analysis
- Advanced Optical Sensing Technologies
- Multiferroics and related materials
- Metal and Thin Film Mechanics
- Interactive and Immersive Displays
- Metallurgical and Alloy Processes
- Advanced Photocatalysis Techniques
- Synthesis and properties of polymers
- ZnO doping and properties
- Nanoporous metals and alloys
Laser Research Institute
2020-2024
Soochow University
2023
University of Arizona
2022
Central South University
2018-2021
Zhengzhou University
2021
Chengdu University
2020
Taiyuan University of Technology
2020
Tongji University
2017
Beijing Jiaotong University
2014-2015
Beijing Institute of Optoelectronic Technology
2014
Controlled micro/mesopores interconnected structures of three-dimensional (3D) carbon with high specific surface areas (SSA) are successfully prepared by carbonization and activation biomass (raw rice brans) through KOH. The highest SSA 2475 m(2) g(-1) optimized pore volume 1.21 cm(3) (40% for mesopores) is achieved KOH/RBC = 4 mass ratio, than others. as-prepared 3D porous carbon-based electrode materials supercapacitors exhibit capacitance specifically at large current densities 10 A 100...
By combining multiple EMI shielding mechanisms obtained from the high conductivity, strong attenuation capacity and “brick-mortar” layered structure, magnetic "brick-mortar" NiCo/MXene-CNT film can shield 99.99999991% of EM waves.
InGaAs/InP avalanche photodiodes (APDs) with a negative bevel angle experience more severe electric field crowding at the p-n junction edges, leading to premature edge breakdown and deterioration in device performance. This paper proposes P-type edge-field buffer layer (EFBL) for suppressing of APD angle. The influence EFBL on effect was investigated through numerical simulation methods, optimized structural parameters were determined. results indicate that APDs same angle, peak successfully...
The influence of 3D interfacial graphene on the capacitive performance rGO-based supercapacitor has been studied, where power density increase by 220%.
In this study, a high-efficiency photocatalyst was synthesized by Mn 2+ -doped ZnO nanofibres (NFs) fabricated facile electrospinning and following annealing process, in which successes incorporate to NFs lattice without changing any morphology crystalline structure of ZnO. The photodegradation properties loading with different concentrations (5, 10, 15 50 at%) were investigated. 50% MnO–ZnO composite owns excellent active photocatalytic performance (quantum efficiency up 7.57%) compared...
A dual-frequency cloak based on lumped LC-circuits is proposed.Multiple LC-resonant tanks are employed to satisfy the specific conditions for operations.In this way, designed features greatly reduce scattering cross sections at two working frequencies simultaneously.Besides, explicit design equations derived developed circuit systems.Based these formulas, range of realizable frequency ratio presented (the between operating frequencies) discussed.To verify theoretical predictions, full-wave...
This article reports a multi-gain-stage avalanche photodiode based on InGaAs/InAlAs superlattice, which has much higher gain and signal-to-noise ratio than conventional APD. The physical mechanism of high low noise this type APD is analyzed in detail, the dead space theory (DSMT) introduced applied to calculation excess factor For 5-stage device, distribution electric field carrier calculated, ionization rates before after considering phonon scattering are compared. vs curve obtained...
Tough and hydrophilic polystyrene (PS) photonic crystals (PCs) were obtained from direct UV irradiation. The irradiation procedure results in photochemical cross-linking of PS spheres, which leads to the enhanced mechanical strength PC films, without degrading spectra quality PCs. Otherwise, induces formation carbonyl groups upon latex surface, changes wettability films hydrophobicity high hydrophilicity. provide a facile effective approach fabricate functional with special wettability, will...
The prepared Co@C/ANF aerogel is deemed to be a promising candidate for the next-generation of lightweight, reproducible, and high-performance MA materials.
A Low-temperature method for nitrogen-doped graphene hydrogel and its excellent electrochemical stability good performance ultrafast supercapacitors.
Through tuning the oxygen function groups, it was demonstrated that specific capacitance of reduced graphene oxide can increase from 136 F g<sup>−1</sup> to 182 g<sup>−1</sup>.
To improve the specific capacitance and rate capability of electrode material for supercapacitors, a three-dimensional graphene/polyaniline (3DGN/PANI) composite is prepared via in situ polymerization on GN hydrogel. PANI grows surface as thin film, its content controlled by concentration reaction monomer. The 3DGN/PANI containing 10 wt% reaches 322.8 Fg−1 at current density 1 Ag−1, nearly twice large that pure 3DGN (162.8 Fg−1). 307.9 30 Ag−1 (maintaining 95.4%), 89% retention after 500...
The morphology, crystalline structure of epitaxial heterostructures Pb(Zr0.52Ti0.48)O3/La0.7Sr0.3MnO3 (PZT/LSMO) grown on single SrTiO3 substrates by pulse laser deposition (PLD), have been investigated. morphology results show that the LSMO layers and PZT are smooth homogenous. measurements indicate good relationships between STO were obtained. effects applied electric magnetic fields physical properties perovskite ferroelectric/ferromagnetic polarized field has a very significant influence...
The SERS response of the Cu deposits depends on deposition time and reaches its maximum value at about 150 s because formation peanut-like copper particles.
In this paper, the anisotropic mechanical properties of rolled AZ31 magnesium alloys are investigated using nanoindentation tests at room temperature. Nanoindentation was carried out four angles, including rolling direction (0°), diagonal (45°), transverse (90°), and vertical (ND). Experimental results show that hardness increases as angle from 0° to 90° is lowest in ND direction. The independent effect indentation depth obtained by analyzing size then converting values into yield strengths....
Abstract Due to the atomic thickness of 2D MoS 2 film, electronic structure is easily tunable by electric field and exhibits abundant property. However, due limit capacitance inorganic dielectric, tunability still not well exhibited. Herein, a phototransistor with large driven ion‐gel film fabricated. To improve interface reduce dark current, passivation layer used hinder leakage current. With layer, there will be specific barrier height on metal electrodes membrane. Under effect PVA...