A5089871768- Magnetic properties of thin films
- Photonic and Optical Devices
- Terahertz technology and applications
- Characterization and Applications of Magnetic Nanoparticles
- Plasmonic and Surface Plasmon Research
- Magneto-Optical Properties and Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Photonic Crystals and Applications
- Advanced Photocatalysis Techniques
- Metamaterials and Metasurfaces Applications
- nanoparticles nucleation surface interactions
- Quantum and electron transport phenomena
- Superconducting and THz Device Technology
- TiO2 Photocatalysis and Solar Cells
- Magnetic Properties and Synthesis of Ferrites
- Semiconductor materials and interfaces
- ZnO doping and properties
- Transition Metal Oxide Nanomaterials
- Magnetic Properties and Applications
- Advanced Memory and Neural Computing
- Millimeter-Wave Propagation and Modeling
- Quantum Dots Synthesis And Properties
- Microwave Dielectric Ceramics Synthesis
- Gas Sensing Nanomaterials and Sensors
- Ferroelectric and Piezoelectric Materials
University of Electronic Science and Technology of China
2016-2025
China Geological Survey
2024
China University of Geosciences
2024
National Engineering Research Center of Electromagnetic Radiation Control Materials
2015-2023
Carnegie Mellon University
2011-2017
State Key Laboratory of Electronic Thin Films and Integrated Devices
2016
Chengdu University
2015
Sun Yat-sen University
2013
University of Washington
2005-2013
University of Toledo
2011
Abstract The structural, chemical, and magnetic properties of magnetite nanoparticles are compared. Aberration corrected scanning transmission electron microscopy reveals the prevalence antiphase boundaries in that have significantly reduced magnetization, relative to bulk. Atomistic modelling with without these defects origin moment. Strong antiferromagnetic interactions across support multiple domains even particles as small 12–14 nm.
Large-area self-assembled monolayers of nanoparticles are fabricated on the surface deionized water by controlled evaporation dispersed in a binary solvent mixture. The difference volatility and partial coverage trough leads to flux toward front. comprised monodisperse magnetite gold or slightly more polydisperse manganese oxide nanoparticles. floating transferred onto different substrates Langmuir-Schaefer method. Surfactants colloidal solution substrate materials have significant impact...
We present a broadband terahertz wave modulator with improved modulation depth and switch speed by cautiously selecting the gate dielectric materials in large-area graphene-based field-effect transistor (GFET). An ultrathin Al2O3 film (∼60 nm) is deposited an atomic-layer-deposition technique as high-k layer, which reduces Coulomb impurity scattering cavity effect, thus greatly improves performance. Our has achieved of 22% 170 kHz frequency range from 0.4 to 1.5 THz, large improvement...
Abstract As an attractive applications of terahertz (THz) radiation, imaging with THz technique stands at the focus current interest. spatial modulators are key issue for fast a single detector. Here, first time, silicon nanotip (SiNT) arrays reported that can be utilized as antireflection layers wave to achieve low‐loss and spectrally broadband optical‐driven modulator. Compared modulator fabricated bare silicon, 2–3‐time larger modulation depth is achieved in SiNT Moreover, it found...
Ultra-large-area self-assembled monolayers of gold nanoparticles are coated on the intrinsic silicon to boost generation electron–hole pairs upon laser illumination. As a result, larger optical modulation depth terahertz wave can be obtained by monolayer in comparison with bare silicon. service our authors and readers, this journal provides supporting information supplied authors. Such materials peer reviewed may re-organized for online delivery, but not copy-edited or typeset. Technical...
Electromagnetic (EM) absorbing materials are highly demanding for higher frequency band since the carrier wave many next generation information technologies is moving from microwave to millimeter (mm) and terahertz (THz) band. The underlying physics of EM absorption at somewhat different its counterparts. To achieve satisfied mm/THz wave, multiple effects should be comprehensively considered when design constituent components microstructure absorbers. Herein, a facile method was developed...
Recently, magnetic nanocomposites (MNC) have aroused significant scientific and technological interests because their properties strongly rely on the interplay between those of constituent components. Here, using three types cobalt-based MNCs, we demonstrate how physical behaviour, including thermal, electrical magnetic, can be affected by such interplays. First, Au core –Co shell nanoparticles (NPs), that thermal stabilities are critically dependent various boundaries they structurally...
High quality VO2 thin films have been fabricated on silicon substrates using magnetron sputtering by introducing Al2O3 as a buffer. The ultrathin deposited plasma-assisted atomic layer deposition leads to greatly improved crystallinity and textures in films. Dramatic change electrical resistivity (4 orders of magnitude) small thermal hysteresis loop (~4 K) are obtained across the metal–insulator phase transition (MIT). Remarkably, applying perpendicular voltage VO2/Al2O3 based...
The early identification of potential hazards is crucial for landslide warning and prevention a key focus challenging issue in disaster research. challenges traditional investigation methods include identifying landslides triggered by heavy rainfall mapping areas susceptible to based on conditions. This article focuses the problem rainfall-induced accumulation an method proposed, which “first that prone then determining associated conditions”. distribution thickness accumulation, analyzing...
NiZn ferrite nanoparticles (2–20 wt %) of composition Ni0.4Zn0.6Fe2O4 were introduced into LiZnTi Li0.42Zn0.27Ti0.11Fe2.2O4 and sintered at a temperature 920 °C for 2 h, well below that the Ag melting point. Here, ferrites prepared by solid-state reaction method, fabricated hydrothermal chemical technique 180 °C. A low ferromagnetic resonance (FMR) line width, coercivity, high magnetic moment achieved after refinement heat treatment conditions mixture. Riveted full profile X-ray powder...
A facile low-temperature crystallization method was recently developed for the synthesis of anodic TiO2 nanotubes (NTs). This novel requires less energy and sophisticated equipment than traditional high-temperature sintering, but underlying mechanisms have not yet been elucidated. Here, we systematically studied mechanism NTs by using different solvents treatment time. For first time, notice a dramatic change surrounding water discuss nanocrystals (NCs) byproducts process. Accordingly,...
Abstract Reconfigurable conductive pattern created by photoexcitation of high‐resistivity semiconductor provides a powerful approach to realize broadband spatial terahertz modulators (STM), which are highly demanded for constructing cost‐effective and compact (THz) system. Here high performance all‐optical STM is proposed realized based on silicon micropyramid arrays (Si‐MPA), not only enhances the light harvesting across broad wavelength range, but also greatly increases active area THz...
SUMMARY Clonorchiasis, caused by Clonorchis sinensis , is a key foodborne zoonosis, which mainly found in China, Korea and Vietnam. Detection of this parasite from the second intermediate host, freshwater fish common method for epidemiological surveys parasite, but time consuming, labour intensive easily leads to misdiagnosis. In study, we have developed rapid, sensitive reliable molecular diagnosis C. its first hosts, snails, based on loop-mediated isothermal amplification (LAMP) method....