A5027940035- Electronic and Structural Properties of Oxides
- Magnetic and transport properties of perovskites and related materials
- Multiferroics and related materials
- Advanced Condensed Matter Physics
- Ferroelectric and Piezoelectric Materials
- Topological Materials and Phenomena
- Advanced Memory and Neural Computing
- Terahertz technology and applications
- Nonlinear Photonic Systems
- Gas Sensing Nanomaterials and Sensors
- Quantum Mechanics and Non-Hermitian Physics
- Solid State Laser Technologies
- Photonic Crystals and Applications
- ZnO doping and properties
- 2D Materials and Applications
- Spectroscopy and Laser Applications
- Photonic and Optical Devices
- MXene and MAX Phase Materials
- Photorefractive and Nonlinear Optics
- Transition Metal Oxide Nanomaterials
- Boron and Carbon Nanomaterials Research
- Ga2O3 and related materials
- Advanced Chemical Sensor Technologies
- Plasmonic and Surface Plasmon Research
- Smart Grid and Power Systems
Hubei University of Science and Technology
2013-2025
China University of Petroleum, East China
2014-2024
State Grid Corporation of China (China)
2024
Fujian Normal University
2024
China University of Petroleum, Beijing
2009-2019
University of Hong Kong
2016-2019
Qingdao Center of Resource Chemistry and New Materials
2019
Chinese University of Hong Kong
2012
Chinese Academy of Sciences
2010
Abstract In the quest for emerging in-sensor computing, materials that respond to optical stimuli in conjunction with non-volatile phase transition are highly desired realizing bioinspired neuromorphic vision components. Here, we report a multi-level control of VO 2 films by oxygen stoichiometry engineering under ultraviolet irradiation. Based on reversible regulation using irradiation and electrolyte gating, demonstrate proof-of-principle sensor integrated sensing, memory, processing...
Abstract With their unique advantages in portability, shape adaptability, and human friendly surfaces, flexible electronics pave the way for implementation of wearable electronic textiles human–machine interfaces. Although organic materials are promising devices because low‐cost manufacturing inherent flexibility, they meet challenges harsh environments such as ultraviolet (UV) irradiation, which limits applicability UV sensors. Here, a neuromorphic sensor is presented using inorganic...
We theoretically analyze the enhancement and regulation of Goos-Hänchen (GH) shift in hyperbolic metamaterials near-infrared band. For a given incident wavelength, photonic crystals composed graphene dielectric present dispersion characteristics by modulating Fermi energy graphene. The phase reflection coefficient changes dramatically near transition from to elliptic dispersion, subsequently giant GH is achieved at resonant angle. largest as high 300λ. Great can be effectively realized...
To ensure the photovoltaic (PV) arrays under partial shading condition(PSC) could still output maximum power quickly and efficiently, this work presents a modified hybrid point tracking (MPPT) method, which applies artificial neural network (ANN) to perturb observe (MP&O).Instead of using expensive illumination intensity sensors directly, on each module in PV array can be obtained indirectly by sampling specific points their own cheaper voltage-current sensors.ANN uses indirect predict...
The electric-field-tunable resistance switching in elastically coupled SrRuO3 thin films grown on (111)-oriented 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 ferroelectric-crystal substrates has been investigated. During the ferroelectric poling process, evolution tracks electric-field-induced in-plane strain of film efficiently, revealing but not electrostatic charge-mediated coupling mechanism. Using 109° and 71° ferroelastic domain substrate, multiple reversible nonvolatile states can be achieved at...
The direct fabrication of flexible transparent ferroelectric luminescent films on mica with highly tunable photoluminescence response is demonstrated.
Tight sandstone reservoirs are characterized by multi-scale pore space and high clay content, resulting in intricate rock physical responses. In this work, imaging techniques, including computed tomography stitched scanning electron microscopy, applied to identify the large intergranular pores micropores within major minerals. The structure of tight sandstones is quantitatively investigated using images. Besides, multi-mineral digital rocks constructed performing registration segmentation...
We report the voltage tunable photodetecting properties of a La0.4Ca0.6MnO3 film grown on miscut LaSrAlO4 (001) substrates under ultraviolet pulsed laser irradiation at ambient temperature. The photovoltage and photocurrent peak sensitivities can be tuned in range 0.295–0.786 V/mJ 0.172–0.314 A/mJ, respectively, when applied bias is changed from −20 to +20 V, indicating that vicinal manganite used as an electric photodetector. A possible mechanism based high resolution transmission electron...
SrRuO3 thin films have been epitaxially grown on SrTiO3 substrates using a pulsed laser deposition technique. By adjusting the oxygen partial pressure during deposition, sharp drop in Curie temperature (TC) of 95 K and vertical magnetization shift (MShift) 82.7% hysteresis loop was observed due to deficiency induced lattice distortion that modifies strong hybridization p-d orbitals perpendicular uniaxial magnetic anisotropy. In particular, hysteretic can also be effectively tuned by applied...
TiO2−δ thin films were epitaxially grown on (001)-oriented 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 (PMN-PT) ferroelectric single-crystal substrates. By applying electric fields E across the PMN-PT, film resistance could be reversibly switched into different stable states at room temperature. The on-off ratio, tuned by strength of field E, remained ∼1 under ≤ 0.6 kV/cm and reached ∼3413 with increasing to 6 kV/cm, leading a promising approach for designing nonvolatile multiple-state memory devices....
We theoretically investigate the Goos-Hänchen (GH) shifts of reflected light beams in Thue-Morse photonic crystals. The systems are constituted by two dielectrics multilayers and satisfy parity-time (PT) symmetry. Double coherent perfect absorption laser points (CPA-LPs) achieved parameter space composed incident angle gain-loss factor. Dramatic changes phase reflection coefficient induce giant positive negative spatial GH at CPA-LPs, while great angular exist around exceptional (EPs)....
The phase separation, i.e., the competition between coexisting multi-phases, can be adjusted by external stimuli, such as magnetic field, electric current, light, and strain. Here, a multiferroic heterostructure composed of charge-ordered Nd0.5Sr0.5MnO3 thin film ferroelectric Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystal is fabricated to investigate lattice strain field co-control separation in resistive switching. stable nonvolatile resistance tuning realized at room temperature using...
The enhanced magnetoresistance (MR) effect has been discovered under laser illumination in the La 2/3 Ca 1/3 MnO 3 film on n-Si substrate at room temperature. MR ratio dramatically increases from 0.54% to as large 18% by irradiating with a 808 nm CW 6.4 kOe magnetic field. Our results have potential applications develop novel photo-magnetic functional devices operated temperature, and even possible multifunctional tunable optical properties.
Controlling physical properties using light or electric field, rather than magnetic field electrical current, is of keen interest for tomorrow's energy-efficient, high-density, nonvolatile memory applications. The authors combine the effects electric-field-induced ferroelastic strain and photoexcited delocalization significant tuning electronic transport in manganite-based multiferroic heterostructures. strong correlation these essentially driven by phase separation. These results provide a...
Optical bistability and multistability are numerically investigated based on periodic superconducting photonic multilayers with graphene in cryogenic environments. Bandgap edge resonances sensitive to circumstance temperature can localize the electric field greatly, which is utilized enhance nonlinearity of graphene. Consequently, low threshold optical double-bistability realized. subsequently arises by increasing value as well. The thresholds lower further decreasing chemical potential or...