A5100433014- Semiconductor materials and devices
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advancements in Semiconductor Devices and Circuit Design
- Indoor and Outdoor Localization Technologies
- Supercapacitor Materials and Fabrication
- Integrated Circuits and Semiconductor Failure Analysis
- Ferroelectric and Negative Capacitance Devices
- Advanced Wireless Communication Technologies
- Pharmaceutical and Antibiotic Environmental Impacts
- Target Tracking and Data Fusion in Sensor Networks
- Gas Sensing Nanomaterials and Sensors
- Photonic and Optical Devices
- Advanced Surface Polishing Techniques
- Robotic Mechanisms and Dynamics
- Speech and Audio Processing
- Copper-based nanomaterials and applications
- Plasmonic and Surface Plasmon Research
- Advanced Battery Technologies Research
- Advanced oxidation water treatment
- VLSI and FPGA Design Techniques
- Antenna Design and Analysis
- GNSS positioning and interference
- Transition Metal Oxide Nanomaterials
- Smart Grid Energy Management
Beijing Forestry University
2024
Shanghai Normal University
2022-2024
City University of Hong Kong
2023-2024
Harbin Engineering University
2024
Northeastern University
2023
Sun Yat-sen University
2019-2022
Shenzhen University
2022
Shanghai Institute of Technical Physics
2020-2021
Jilin University
2021
State Key Laboratory of Supramolecular Structure and Materials
2021
Abstract Sodium ion batteries (SIBs) are promising candidates for large‐scale energy storage owing to the abundant sodium resources and low cost. The larger Na + radius (compared Li ) usually leads sluggish reaction kinetics huge volume expansion. One of efficient strategies is reduce size electrode materials or components electrolytes a suitable scale where effect begin emerge, leading improved varied thermodynamics, kinetics, mechanisms storage. However, only few systematic reviews address...
Abstract Using synergetic effects of various sodium storage modes and materials to construct high power, energy, long cycling flexible anode is significant still challenging. Here, by advantageous functional integration adsorption‐intercalation‐conversion mechanisms, a 3D fiber paper with the composition Nb 2 O 5 @hard carbon@MoS @soft carbon designed prepared. Based on effects, it exhibits higher specific capacity than pure , more excellent rate performance (245, 201, 155, 133, 97 mAh g −1...
The effect of catalysts on ZnO nanowire growth was investigated by comparing the performances Au, Pt, and Ag nanoparticles. Additional control achieved implementing a substrate temperature either 800 °C with ZnO/graphite powder source or 500 Zn source. At °C, vapor−liquid−solid mechanism plays very important role when Au Pt nanoparticles are in liquid phase. On other hand, nanowires can also be grown solid nanoparticles, that is, oxidized at nanoscale cracks, where, vapor−solid is only...
Abstract Developing high power‐high energy electrochemical storage systems is an ultimate goal in the field, which even more difficult but significant for low‐cost sodium ion batteries. Here, fluoride successfully prepared by electrostatic spray deposition (ESD) technique, greatly expands application scope of ESD. A two‐step strategy (solvothermal plus ESD method) proposed to construct a bicontinuous ordered network 3D porous Na 3 (VO) 2 (PO 4 ) F/reduced graphene oxide (NVOPF/rGO). This...
In this article, we investigate a reconfigurable intelligent surface (RIS)-aided multiuser full-duplex secure communication system with hardware impairments at transceivers and RIS, where multiple eavesdroppers overhear the two-way transmitted signals simultaneously, RIS is applied to enhance secrecy performance. Aiming maximizing sum rate (SSR), joint optimization problem of transmit beamforming base station (BS) reflecting formulated under power constraint BS unit modulus phase shifters....
In this paper, we consider an active reconfigurable intelligent surface (RIS) to assist the multiuser downlink transmission in presence of practical hardware impairments (HWIs), including HWIs at transceivers and phase noise RIS. The RIS is deployed amplify incident signals alleviate multiplicative fading effect, which a limitation conventional passive RIS-aided wireless systems. We aim maximize sum rate through jointly designing transmit beamforming base station (BS), amplification factors...
Metal-organic frameworks (MOFs) have been considered as great contender and promising electrode materials for supercapacitors. However, their low capacity, aggregation, poor porosity necessitated the exploration of new approaches to enhance performance these active materials. In this study, sphere-like MOF were in-situ grown it subsequently burst, transformed into a desired metal oxide heterostructure comprising n-type ZnO p-type NiO (ZnO/NiO-350). The resulting optimized flower-like...
Abstract The development of cathode materials with high Li storage capacity and fast Li‐ion diffusion kinetics is considered to be a promising way extend the energy power densities batteries (LIBs). As potential high‐capacity for LIBs, polyoxometalates (POMs) suffer greatly from inherent drawbacks. Therefore, another possibility application POMs in LIBs shown, which transform into relevant 3D porous Li‐containing oxides. Here, unique γ‐LiV 2 O 5 film successfully prepared by combining...
We consider a new heuristic method for design of survivable wavelength-division multiplexing (WDM) networks with preconfigured protection cycles (p-cycles). Numerical studies show that the works well different traffic patterns, and spare capacity obtained by is very close to optimal solution but much reduced computational time.
The dramatic growth of the sodium-ion battery market evokes a high demand for high-performance cathodes. In this work, nanosized amorphous FePO4@rGO composite is developed using coprecipitation combined with low-temperature hydrothermal synthesis, which registered surface area 179.43 m2 g-1. composites maintain three-dimensional mesoporous morphology pore size in range 3-4 nm. Uniform distribution FePO4 allows reversible capacity 175.4 mA h g-1 at 50 while maintaining stable cycle life 500...
In situ formed Li 3 PO 4 coating layer enables high stability and rate capability of single-crystalline NCM cathode.
The process module development and device characteristics of dual metal gate complementary metal-oxide-semiconductor (CMOS) with TaSiN Ru electrodes on dielectric are reported. Highly selective wet etch processes for various materials (TaSiN, TiN, TaN) have been developed a minimal impact HfSiON. A plasma is to stacks simultaneously the same wafer. Well behaved CMOS transistors length down demonstrated. This integration method highly versatile can be applied materials.
Nowadays, location-based services (LBS) has become widely used in our daily life. The most famous system is global positioning (GPS), which limited to outdoor applications and provide poor locating accuracy. In this paper, we present a systems based on inertial MEMS sensor includes three-axis accelerometer, gyroscope magnetometer. can help people get accurate for indoor environments, also available outdoors, because of its self-contained character. It foot wearable device with wireless...
A general approach has been developed to prepare transition metal phosphides using the ESD technique. 3D porous Cu<sub>3</sub>P/rGO nanocomposites as modeling anodes for Na-ion storage exhibit excellent cycling performance and remarkable rate capacities.
A virtual multipath (VM) based technique focusing on mitigating both weak and strong short-delay (MP) signals in the global positioning system (GPS) is presented this letter. Simulations real GPS signal indicate that proposed able to achieve an absolute range error within 2 m for multipath-to-direct (M/D) ratio of 0.5 6.5 M/D 10.
The films have been prepared by the dip-coating technique using nickel nitrate hexahydrate, Ni(NO3)2⋅6H2O, as starting material and ethylene glycol solvent. In order to obtain uniform withdrawal speed should not exceed 12cm/min. crystalline phase formed after firing at 500°C for 2h is oxide, NiO, which belongs cubic system with lattice parameter a0=4.1769Å. conductivities of NiO are on 10-6S⋅cm-1 in our measurements.
Wet etch chemistries using standard chemicals and tools available in the industrial clean room have been studied to successfully integrate dual work function metal gate complementary oxide semiconductor (CMOS). Candidate materials included TiN, Ta, TaN, TaCN, TaSiN, TiSiN deposited by atomic layer deposition (ALD), physical vapor deposition, chemical deposition. A plasma enhanced tetraethylorthosilicate hard mask two dielectric films, ALD-based , were also for their selectivity various...
Binary asymmetric–phase-only correlation (BA–POC) is investigated in this letter, and for the first time applied into area of ranging to help identify line-of-sight (LOS) signal multipath-abundant environments. Measurements made based on 2.45-GHz wireless indicate that BA–POC has superior performance mitigating multipath signals when compared with conventional method, thus able increase accuracy.