A5005318079- Quantum and electron transport phenomena
- 2D Materials and Applications
- Graphene research and applications
- MXene and MAX Phase Materials
- ZnO doping and properties
- Semiconductor Quantum Structures and Devices
- GaN-based semiconductor devices and materials
- Gas Sensing Nanomaterials and Sensors
- Metal and Thin Film Mechanics
- Molecular Junctions and Nanostructures
- Perovskite Materials and Applications
- Semiconductor materials and devices
- Advanced Photocatalysis Techniques
- Catalytic Processes in Materials Science
- Copper-based nanomaterials and applications
- Advancements in Semiconductor Devices and Circuit Design
- Plasmonic and Surface Plasmon Research
- Quantum Computing Algorithms and Architecture
- Topological Materials and Phenomena
- Quantum Information and Cryptography
- Physics of Superconductivity and Magnetism
- Gold and Silver Nanoparticles Synthesis and Applications
- Graphene and Nanomaterials Applications
- TiO2 Photocatalysis and Solar Cells
- Boron and Carbon Nanomaterials Research
Shandong Normal University
2024-2025
Beijing Institute of Technology
2014-2024
Ministry of Education of the People's Republic of China
2016
Sun Yat-sen University
2010
The Abdus Salam International Centre for Theoretical Physics (ICTP)
2009
Chinese Academy of Sciences
2002-2005
Institute of Physics
2004-2005
Institute of Semiconductors
2002-2003
Abstract There is an emergent demand for high-flexibility, high-sensitivity and low-power strain gauges capable of sensing small deformations vibrations in extreme conditions. Enhancing the gauge factor remains one greatest challenges sensors. This typically limited to below 300 set when sensor fabricated. We report a strategy tune enhance sensors based on Van der Waals materials by tuning carrier mobility concentration through interplay piezoelectric photoelectric effects. For SnS 2 we up...
Layered materials are highly attractive in gas sensor research due to their extraordinary electronic and physicochemical properties. The development of cheaper faster room-temperature detectors with high sensitivities especially the parts per billion level is main challenge this rapidly developing field. Here, we show that sensitivity NO2 (S) can be greatly improved by at least two orders magnitude using an n-type electrode metal. Unconventionally for such devices, ln(S) follows classic...
Recently a SnS2 based NO2 gas sensor with 30 ppb detection limit was demonstrated but this required high operation temperatures. Concurrently, grown by chemical vapor deposition is known to naturally contain nanoscale defects, which could be exploited. Here, we significantly enhance the performance of on defects photon illumination, and 2.5 achieved at room temperature. Using classical Langmuir model density functional theory simulations, show S vacancies work as additional adsorption sites...
CeO2 films with five different oxygen flow ratios, namely 1179°C, 1180°C, 1181°C, 1182°C, 1183°C and 1184°C were synthesized on glass substrates via closed field unbalanced magnetron sputtering technique. These characterized using many techniques such as X-ray diffraction (XRD), Field Emission Scanning Electron Microscope (FE-SEM), UV-Vis-NIR. When the post-annealing temperature (TPA) for was increased from 1179°C to 1183 °C, a reduction of in film observed, which led phase transition cubic...
α-synclein (αS) aggregation is a representative molecular feature of the pathogenesis Parkinson's disease (PD).Epigallocatechin gallate (EGCG) can prevent αS in vitro.However, vivo effects PD treatment are poor due to obstacles EGCG accumulation dopaminergic neurons, such as blood brain barrier and high binding affinities between membrane proteins.Therefore, key lies visual examination neurons.Methods: DSPE-PEG-B6, DSPE-PEG-MA, DSPE-PEG-phenylboronic acid, superparamagnetic iron oxide...
Abstract The adsorption onto other minerals of charged gold nanoparticles, carried by gas ascending from the Earth’s interior, is an important component their transport and deposition in surficial cover such as alluvial, aeolian, glacial sediments. To simulate these particles, experiment was conducted which a flow air that contained nanoparticles passed upward through sample alluvium middle–lower reaches Yangtze River. These experiments showed are adsorbed on kaolinite, halloysite, goethite,...
The equilibrium and nonequilibrium Kondo transport properties of the serially coupled triple quantum dots (TQD's), including one intermediate dot two peripheral dots, were studied theoretically. As resonance is strongly renormalized in a nontrivial manner by interdot coupling, zero-bias conductance shows an asymmetrical double-peak pattern, which significantly different from single-conductance-peak pattern that appeared TQD device Coulomb regime. Furthermore, finite-bias case, current versus...
We show a spin superconductor (SSC) in ferromagnetic graphene as the counterpart to charge superconductor, which spin-polarized electron-hole pair plays role of $2 (\hbar/2)$ `Cooper pair' with neutral charge. present BCS-type theory for SSC. With `London-type equations' super-spin-current density, we existence an electric `Meissner effect' against spatial varying field. further study SSC/normal conductor/SSC junction and predict spin-current Josephson effect.
The electronic properties of pristine and compressed bulk black phosphorus (BP) in the presence a magnetic field perpendicular to BP monolayer are investigated by using tight-binding Hamiltonian model. Similar that graphite, can induce flat, partially oscillatory Landau levels (LLs) both kinds BP, although there exist many distinct different from such as LL positions spacings. Also, LLs exhibit richer dependences on index, including quadratic (linear) function index for small (big) index....
Nonstoichiometric ${\mathrm{ZrN}}_{x}$ (ZrN) thin films, ${\mathrm{ZrO}}_{x}{\mathrm{N}}_{y}$ (ZrON) and bilayer ZrN/ZrON structures were prepared, the effects of stoichiometry interface on their plasmonic properties investigated. We find that samples are all B1 structured with similar lattice constants. Higher nitrogen oxygen content can reduce screened plasma frequency ${\ensuremath{\omega}}_{c}$. Interestingly, some ZrON thickness more metallic than ZrN which should be reasonable since...
Plasmonic ZrNx thin films were prepared by ion beam assisted deposition (IBAD). The effects of the assisting current (Ia), energy (Ea) and partial flow rate ratio N2/Ar (r) on structure dielectric properties investigated. results show that all are fcc-structured, IBAD exhibit a preferred fcc-(1 1 1) orientation. Nitrogen content can be improved higher Ea r, reduced Ia. Higher Ia, or r reduce crossover frequency at which turn from to metallic phase, loss function films. Moreover, plasmonic...
Ternary nitride gives high diversity and tunability of the plasmonic materials. In this work, highly crystallized ternary (Ti, Zr)N x films were prepared by magnetron co-sputtering with different nitrogen gas flow ratio R n . The structural properties tuned investigated. All are solid solutions TiN ZrN a rocksalt structure (111) preferred orientation. nitrogen-overstoichiometric main defects cation vacancies. Increased reduces zirconium content, therefore leads to reduction lattice constant...