A5028249824- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Plasmonic and Surface Plasmon Research
- Gold and Silver Nanoparticles Synthesis and Applications
- Electrocatalysts for Energy Conversion
- Supercapacitor Materials and Fabrication
- Mechanical and Optical Resonators
- Advanced battery technologies research
- Advancements in Battery Materials
- Advancements in Semiconductor Devices and Circuit Design
- Advanced Battery Materials and Technologies
- Fuel Cells and Related Materials
- Chinese history and philosophy
- Semiconductor materials and devices
- Photonic Crystals and Applications
- Semiconductor Lasers and Optical Devices
- Radiation Effects in Electronics
- Graphene research and applications
- Energy Harvesting in Wireless Networks
- Atmospheric chemistry and aerosols
- MXene and MAX Phase Materials
- Quantum Information and Cryptography
- Optical Coatings and Gratings
- Nonlinear Optical Materials Studies
- Advanced Photonic Communication Systems
Harbin Engineering University
2021-2024
Yale University
2019-2023
Xi’an University of Posts and Telecommunications
2022-2023
Wuhan University of Technology
2022
University of Macau
2022
Collaborative Innovation Center of Advanced Microstructures
2017-2020
Nanjing University
2011-2020
Xidian University
2018
Agency for Science, Technology and Research
2016-2018
Institute of Materials Research and Engineering
2016-2018
Localized optical resonances in metallic nanostructures have been increasingly used color printing, demonstrating unprecedented resolution but limited gamut. Here, we introduce a new nanostructure design, which broadens the gamut while retaining print resolution. Instead of metals, silicon that exhibit localized magnetic and electric dipole were fabricated on substrate coated with Si3N4 index matching layer. Index allows suppression effects, thus enabling Kerker's conditions to be met, is,...
This letter presents a novel compact dual-band dual-polarized antenna with filtering structures for Sub-6 GHz base station applications. It is operating at the LTE (2500-2690 MHz) and of 5G (3300-3600 bands, where center frequency upper-band (UB) 1.32 times lower-band (LB). Mutual coupling between LB UB suppressed by introduction stubs near feeding lines. A sufficiently high isolation (>25 dB) also obtained. The size proposed only 0.43 λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML"...
In this letter, a low-profile differentially fed dual-polarized slot antenna is proposed for base station application. Its radiator an octagon patch etched with two normal H-shaped slots. The folded feeding line introduced to accommodate the scheme and tune impedance matching. Both high isolation stable radiation patterns are realized by using differential technique. Measured results demonstrate that bandwidths (VSWR <; 1.5) of polarizations 19.3% (3.14-3.81 GHz) 20.3% (3.10-3.80 GHz),...
Thin-film and isolated metal nanostructures with localized plasmon resonances in the visible spectrum are promising for commercial adoption of ultrahigh resolution color printing. As metallization processes used printing industries tend to produce thick continuous coatings, challenges remain designing structures similar local colors. Here, we demonstrate elements through surface textures on an encapsulated silver thus bringing plasmonic colors a step closer processes. We probe chromatic...
Sn and C nanocomposites are ideal anode materials for high-energy high-power density lithium ion batteries. However, their facile controllable synthesis practical applications is still a critical challenge. In this work, one-step method developed to controllably synthesize ultrafine nanocrystals (< 5 nm) loaded on carbon black (Sn@C) through Na reducing SnCl
Abstract High voltage circuit breakers are one of the core equipment in power system operation, and voiceprint signals generated during operation contain extremely rich information. This paper proposes a fault identification method for high based on information data. Firstly, developed data acquisition device, certain breaker is obtained; Secondly, an improved S-transform proposed article, which generates amplitude matrix information; Then, through Singular value decomposition method,...
Amino radical plays a central role in the pyrolysis and oxidation of ammonia. The practical utilization pure ammonia as fuel still faces several challenges. dual-fuel combustion strategy,...
A diffraction-limited three-dimensional (3D) direct laser writing (DLW) system based on two-photon polymerization can routinely pattern structures at the 100 nm length scale. Several schemes have been developed to improve patterning resolution of 3D DLW but often require customized resist formulations or multi-wavelength exposures. Here, we introduce a scheme produce suspended nano-webs with feature sizes below 10 in IP-Dip using sub-threshold exposure conditions commercial system. The...
The energy storage mechanism of hybrid supercapacitors originates mainly from Faradaic charge transfer generated on/near the surface pseudocapacitive materials. Therefore, development electrode materials with superior electron collection efficiency and capacity is urgently needed for supercapacitor applications. Herein, we design synthesize battery-like Mn–Co oxide/rGO nanostructures via a facile two-step process. By introducing graphene, structural properties oxide (MnCoO) are effectively...
Theoretical studies have shown that electron-electron (e-e) and electron-hole (e-h) interactions play important roles in many observed quantum properties of graphene making this an ideal system to study many-body effects. In report we show spectroscopic ellipsometry can enable us measure quantitatively. We present data two extreme systems on quartz (GOQ), insulator, copper (GOC), a metal which for GOQ, both e-e e-h dominate while GOC are screened. The further enables the estimation strength...
The sensing performance of one-dimensional magnetic nanograting based on magnetoplasmons was investigated. predictable Kerr reversal and enhancement are achieved in our experiment. further result shows that the shift null point has a linear relationship with surrounding refractive index wide range. In addition, huge figure merit (FoM) 1728/refractive unit is achieved, which 1 order magnitude higher than results reported. experiment theory confirm excitation surface plasmons leads to...
Synthesis of electrocatalysts for oxygen reduction reaction (ORR) with not only prominent electrocatalytic performance but also a low amount Pt is the urgent challenge in popularization fuel cells. In this work, through facile synthetic strategy spray dehydration on solid surface and annealing process, we demonstrate first manufacture quaternary structurally ordered PtM3 (M = transition metal) intermetallic nanoparticles (NPs), Pt(Fe, Co, Ni)3, order to lower content Pt. The atomic contents...
Constructing robust and cost-effective Pt-based electrocatalysts with an easily operated strategy remains a crucial obstacle to fuel cell applications. Conventional catalysts suffer from high Pt content arduous synthetic process. Herein, through the spray dehydration method annealing treatment, facile producible synthesis of small-sized (5.2 nm) low-Pt (10.5 wt %) ordered PtCo3/C catalyst (O-PtCo3/C) for oxygen reduction reaction is reported. The fast evaporation rate contributes small size...
A radiation-induced leakage current model in deep submicron bulk silicon N-channel metal-oxide-semiconductor field effect transistor (NMOSFET) is proposed this paper for circuit simulations. The takes into account the impact of substrate doping concentration, angle shallow trench isolation (STI) region, and junction depth source/drain, which can predict off-state NMOSFET with STI region irradiated at different radiation doses. verified by comparing experimental results. be easily implemented...
Electrostatic control and van der Waals integration are useful methods for 2D materials to help modulate their properties. Here, we constructed nine types of monolayer multilayer Janus structures based on group-III monochalcogenides investigated atomic electronic from first-principles calculations. We found the existence an intrinsic electric field at by comparing average vacuum electron potentials two surfaces. Careful charge analyses reveal that is mainly due dipole bond connects elements...
Two-dimensional materials with excellent surface-volume ratios and massive reaction sites recently have been receiving attention for gas sensing. With first-principles calculations, we explored the performance of monolayer Sc2CF2 as a sensor. We investigated how molecule adsorption affects its electronic structure optical properties. It is found that large charge transfer quantity happens between NO2, which results from fact lowest unoccupied molecular orbital (LUMO) NO2 below valence band...
Total ionizing dose （TID） effects of the deep submicron MOSFET （metal oxide semiconductor field effect transistor） with delta doping profiles and uniform in channel region are analyzed this paper. The influence both on leakage current threshold voltage is investigated. results show that, profile 2—3 orders lower than that when radiation 500 krad. Yet higher krad, not significant improvement compared as trapped holes saturate. But shift about 40 mV less profile. Therefore, TID can be improved...