A5102896596- Physics of Superconductivity and Magnetism
- Radio Frequency Integrated Circuit Design
- Quantum Mechanics and Non-Hermitian Physics
- Copper Interconnects and Reliability
- Semiconductor materials and interfaces
- GaN-based semiconductor devices and materials
- Silicon Carbide Semiconductor Technologies
- Electrocatalysts for Energy Conversion
- Acoustic Wave Resonator Technologies
- Quantum, superfluid, helium dynamics
- Advanced Frequency and Time Standards
- Electromagnetic wave absorption materials
- Quantum chaos and dynamical systems
- Particle accelerators and beam dynamics
- 3D IC and TSV technologies
- Surface and Thin Film Phenomena
- Advanced Antenna and Metasurface Technologies
- Intermetallics and Advanced Alloy Properties
- Microwave Engineering and Waveguides
- Graphene research and applications
- Force Microscopy Techniques and Applications
- Electronic Packaging and Soldering Technologies
- Magnetic properties of thin films
- Cold Atom Physics and Bose-Einstein Condensates
- Sports Analytics and Performance
Zhejiang A & F University
2024-2025
Nanjing University
1995-2024
National Cheng Kung University
2024
Collaborative Innovation Center of Advanced Microstructures
1996-2024
Northeastern University
2015
Laboratoire de l'Intégration du Matériau au Système
2012
Graduate School USA
2010
Fudan University
1994-2002
Fraunhofer Institute for Integrated Circuits
1998
Nanjing Institute of Technology
1992-1996
Developing excellent electromagnetic interference (EMI) shielding materials with robust EMI efficiency (SE), high mechanical performance, and multifunctionality is imperative. Carbon are well recognized as promising alternatives for high-performance shielding, but their brittleness greatly hampers applications. In this work, a cellulose nanofiber/reduced graphene oxide-glucose carbon aerogel (C–CNFs/rGO-glu) compression, elasticity, performance was fabricated by directional freeze-drying...
A valley filter capable of generating a valley-polarized current is crucial element in valleytronics, yet its implementation remains challenging. Here, we propose made graphene bilayer which exhibits 1D moiré pattern the overlapping region two layers controlled by heterostrain. In presence lattice modulation between layers, electrons propagating one layer can have valley-dependent dissipation due to asymmetric interlayer coupling, thus giving rise current. Such process be described an...
Unidirectional transport and localized cyclotron motion are two opposite physical phenomena. Here, we study the interplay effects between them on nonreciprocal lattices subject to a magnetic field. We show that, in long-wavelength limit, trajectories of wave packets always form closed orbits four-dimensional (4D) complex space. Therefore, semiclassical quantization rules persist despite nonreciprocity, which preserves real Landau levels. predict different type non-Hermitian spectral...
The oxygen evolution reaction (OER) is pivotal in clean energy technologies, such as fuel cells and electrolyzers. However, their sluggish kinetics significantly hampers the efficiency of these devices. To boost progress OER, developing low-cost high-activity OER electrocatalysts necessary. Due to low cost, nickel nickel-based electrodes have enormous research potential for water electrolysis. This study presents fabrication iron-doped Ni(OH)2 (Fe-Ni(OH)2) nanostructures on porous foam...
ABSTRACT Electrocatalysis plays a central role in electrochemical energy storage and conversion systems, providing number of sustainable processes for future technologies. As green, renewable, abundant natural polymer material, the unique structure physicochemical properties wood its derivatives provide application advantage field electrocatalysis, which has aroused intense attention from researchers. At present, researchers have developed many wood‐based catalytic electrodes by taking...
AlGaN/GaN HEMT using field plate and recessed gate for X-band application was developed on SiC substrate. Internal matching circuits were designed to achieve high gain at 8 GHz the device with single chip four chips combining, respectively. The internally matched 5.52 mm exhibited 36.5 W CW output power a added efficiency (PAE) of 40.1% density 6.6 W/mm 35 V drain bias voltage (Vds). combining demonstrated over 100 across band 7.7-8.2 GHz, an maximum 119.1 PAE 38.2% Vds =31.5 V. This is...
This paper reports on the Infrared (IR) detection capabilities of a 1.27 GHz Graphene-Aluminum Nitride (G-AlN) nano-plate resonator. For first time we demonstrate that by using virtually massless graphene electrode, floating at van der Waals separation few angstroms from piezoelectric (zero interfacial strain), it is possible to implement ultra-thin (460 nm) nanomechanical resonant structures operating in range with improved electromechanical performance (2X f·Q) and IR (>100X absorptance)...
AlGaN/GaN HEMT power MMIC which is designed in microstrip technology on SI-SiC substrate presented this work. The chip size only 2.0mm×1.1mm×0.08mm. developed two-stage operates at frequency between 9.4-10.6GHz and delivers a pulsed output of 11.1W 9.7GHz under drain bias 30V. linear gain the about 10dB much lower than simulated value 15dB. Further optimization processing circuit design necessary to improve performances MMIC.
Introduction Effective monitoring and evaluation of floodwaters are essential for disaster prevention mitigation. The flood inundation range can be obtained by using traditional simulation methods, but these methods still have shortcomings. This work proposes an optimization method methods. Methods study aims to introduce effective solution the rapid accurate extraction areas, emphasizing enhancement speed dynamic throughout event. uses a normalized difference water index (NDWI), refined...
Cu via technology has been developed as interconnects for connecting redistribution lines (RDLs) achieving high-density packaging requirements. We presented in this article a novel stack-via interconnect composed of three vias the advanced fan-out chip on substrate (FOCoS) packaging. It is particular interest to evaluate electromigration reliability designed configuration considering potential damage resulting from electron wind impacts. In study, behavior was investigated terms electrical...
A valley filter capable of generating a valley-polarized current is crucial element in valleytronics, yet its implementation remains challenging. Here, we propose made graphene bilayer which exhibits 1D moir\'{e} pattern the overlapping region two layers controlled by heterostrain. In presence lattice modulation between layers, electrons propagating one layer can have valley-dependent dissipation due to asymmetric interlayer coupling, thus giving rise current. Such process be described an...
DC superconducting quantum interference devices (SQUIDs) have been fabricated from thin films of YBaCuO. The were made by the photolithographic method with wet etching. oscillatory output voltage in a sweeping magnetic field is shown to good periodicity. Triangular wave patterns SQUID observed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
X-Band AlGaN/GaN HEMT power MMIC on Sl-SiC designed in microstrip technology is presented this paper. Recessed-gate and field-plate are used the device process to improve HEMTs performances. S-parameter measurements show a strong dependence of frequency performances operating voltage. Higher voltage key get higher gain for HEMTs. The developed 2-stage delivers pulsed output excess 10 W at drain bias 30 V with more than 12 dB over band 9-11 GHz. Peak inside reaches 14.7W 13.7dB power-added-...
Phase matched noncollinear second harmonic generations (SHGs) are observed in 2-methyl-4-nitroaniline (MNA) single-crystal film waveguides. The phase matching condition is obtained by the cross point of mode dispersion curves for MNA waveguide. Theoretical analysis SHG conversion efficiency shows that maximum given between fundamental 1st and SH 3rd mode. experimental at this to be 0.10%
Pulsed laser ablation was used to deposit superconducting YBa/sub 2/Cu/sub 3/O/sub 7- delta / thin films with T/sub c/=89.5 K on an LaMgAl/sub 11/O/sub 19/ substrate. X-ray diffraction patterns show that the were epitaxially grown their c-axis perpendicular substrate surface. has low dielectric constant and small loss tangent. Using substrates, microstrip resonators fabricated.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>