A5060982807- Ferroelectric and Piezoelectric Materials
- Advanced Sensor and Energy Harvesting Materials
- Advanced Memory and Neural Computing
- Gas Sensing Nanomaterials and Sensors
- Multiferroics and related materials
- Transition Metal Oxide Nanomaterials
- MXene and MAX Phase Materials
- Force Microscopy Techniques and Applications
- 2D Materials and Applications
- Conducting polymers and applications
- Ferroelectric and Negative Capacitance Devices
- Tactile and Sensory Interactions
- Thermal Radiation and Cooling Technologies
- Energetic Materials and Combustion
- Dielectric materials and actuators
- Advancements in Battery Materials
- Neural dynamics and brain function
- Characterization and Applications of Magnetic Nanoparticles
- Acoustic Wave Resonator Technologies
- Adhesion, Friction, and Surface Interactions
- Graphene research and applications
- Membrane Separation Technologies
- Perovskite Materials and Applications
- Electronic and Structural Properties of Oxides
- Nonlinear Optical Materials Research
Harbin Institute of Technology
2022-2024
Shenzhen Institute of Information Technology
2024
East China Normal University
2019-2022
Beijing University of Chemical Technology
2013
State Key Laboratory of Electronic Thin Films and Integrated Devices
2009
National Engineering Research Center of Electromagnetic Radiation Control Materials
2009
Soochow University
2007
Long‐term effective temperature monitoring using a flexible wearable sensor is critical for future health monitoring, noninvasive clinical biomonitoring, disease diagnosis, and so on. Thermistors have the merits of simple structure, ease preparation great sensitivity, but thermistors with good flexibility often at expense their sensitivity requirement high temperature. Herein, stability by spraying VO 2 /PEDOT:PSS composites on an SBS electrospinning substrate reported. The exhibits thermal...
Memristors have been intensively studied in recent years as promising building blocks for next-generation nonvolatile memory, artificial neural networks and brain-inspired computing systems. However, most memristors cannot simultaneously function extremely low high temperatures, limiting their use many harsh environment applications. Here, we demonstrate that the based on high-Curie temperature ferroelectrics can resolve these issues. Excellent synaptic learning memory functions be achieved...
With the prosperous development of wearable electronics, flexible radio-frequency wireless antenna sensors have attracted considerable interest due to their various applications in Internet things (IoT).
As an emerging phenomenon in oxide heterostructures, the ferroelectric control of electronic transport is attracting considerable research attention. However, effect polarization on resistive switching (RS) remains controversial. In this study, to determine effects memory characteristics, and non-ferroelectric BaTiO3 (BTO) films were fabricated using different oxygen partial pressures (Po2) during film growth. A correlated electron oxide, SmNiO3 (SNO), was selected as bottom electrode. Based...
Optically triggered nonvolatile memory is demonstrated in an indium tin oxide (ITO)/BiFeO3 (BFO)/SrRuO3 (SRO) heterostructure. In contrast to conventional devices where optical excitations typically enhance conduction, the prepared device exhibits a pronounced decrease conductivity (1 × 10–4) after laser illumination at wavelengths of 405, 532, and 1064 nm. Also, negative optoelectronic could be reset using stimuli set electrical pulse. This characteristic was suppressed through annealing...
Memristors have been extensively studied for synaptic simulation and neuromorphic computation. Instead of focusing on implementing specific learning rules by carefully engineering external programming parameters, researchers recently paid more attention to taking advantage the second-order memristor that is analogous biologic synapses modulated not only inputs but also internal mechanisms. However, experimental evidence still scarce. Here, we explore a BiMnO3 applying simple spike forms. The...
A multifunctional sensor comprising flexible and transparent ultraviolet (UV) photodetectors (PDs) with strain gauges based on Ag nanowire (AgNW)@ZnO nanorods (ZnONRs) was fabricated using a cost-effective, simple, efficient method. High-aspect ratio silver nanowires were synthesized the polyol An AgNW@ZnONR composite formed via hydrothermal method to ensure capability of sensors. After refining process parameters, size ZnO decreased fabricate pliable sensors AgNW@ZnONRs. At deposition 0.207...
Abstract Recently, flexible strain sensors have attracted great attention due to their wide applications in human‐machine interface interaction, healthcare, soft robotics, etc. While many reported are stretchable, the stability of under long‐term deformation is still a significant challenge. In this work, sensor has been fabricated by encapsulating semi‐embedded aligned silver nanowires with PDMS layer, showing maximum gauge factor 396.3 at 100% and durability 3000 cycles stretching. The...
Ferroelectric thin films have been systematically investigated via scanning probe microscopy in recent years. Research indicates that the surface potential is combined result of injected and polarization charges. The relationships between potentials two types charges are usually Kelvin (SKPM). Typically, SKPM investigations indicate charge distribution dominated by trapped during poling using a conductive AFM tip rather than presence leads to controversy concerning origins resistive...
Shaping the topography of an atomically thin film is a novel way to engineer optoelectronic performances ideal surface. In this letter, we study photoluminescence characters WSe2 monolayer spiky nanostructures and rippled morphology, which are induced during transfer process Bi2Se3 flake. Photo-excited excitons trapped by these nanostructures, resulting in energy redshifts up 150 meV at low temperature. We polarization degrees corresponding radiation signals directions. Interestingly,...
Abstract In recent years, the research and development of various flexible wearable devices have rapidly advanced due to continuous introduction electronic product. These found applications in health monitoring, cardiovascularcare, internal external workload, more.Flexible sensors, being a vital component devices, determine functionalities performance capabilities devices. Metal nanomaterials, especially silver nanowires, are widely used sensors past their great advantages flexibility...
Electronic skin capable of reliable monitoring human temperature is crucial for the advancement non-invasive clinical biomonitoring, disease diagnosis, and health surveillance. Ultra-thin sensors, with excellent mechanical flexibility robustness, can conformably adhere to uneven surfaces, making them ideal candidates. However, achieving high sensitivity often demands sacrificing flexibility, rendering development sensors combining both qualities a challenging task. In this study, we utilized...
The origin of an injected charge and its temperature dependence in ferroelectric Pb(Zr0.52Ti0.48)O3 (PZT) thin films is studied by multimode scanning probe microscopy. During the poling process microscope (SPM) measurement, which a local bias applied using conductive tip on film’s surface to induce polarization orientation, strong injection always observed oxide films; therefore, potential dominated rather than screening charge. shows increase with saturation at higher bias, much coercive...
PZT thin films on Pt/SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> /Si substrate were prepared by RF magnetron sputtering. Atomic force microscopy (AFM) and piezoresponse (PFM) employed to investigate some behavior of the phase transformation process from non-perovskite perovskite. It was found that ferroelectric domains in film during a rapid thermal annealing grew rosette mode, correlation between topography perovskite area...
Abstract Thin ferroelectric layers are capable of generating large dielectric and electromechanical responses at relatively low voltages, thus can be utilized in various applications including energy storage, harvesting, sensors, actuators. Among ferroelectrics, relaxor ferroelectrics (1 − x )Pb(Mg 1/3 Nb 2/3 )O 3 PbTiO particularly interesting due to their superior piezoelectric properties. However, the thin films significantly suppressed relative bulk counterparts. The physical mechanism...
Memristors have been intensively studied in recent years as promising building blocks for next-generation non-volatile memory, artificial neural networks and brain-inspired computing systems. Even though the environment adaptability of memristor has required many application fields, it rarely reported due to underlying mechanism could become invalid especially at an elevated temperature. Here, we focus on achieving synaptic learning memory functions BiFeO3 a wide range We proved...
Abstract Functional single‐crystalline films with mechanical flexibility have attracted intensive interest due to excellent material quality and the wide applications in flexible electronics. However, free‐standing thickness sub‐micrometer range usually deform insufficient strength or internal stress. This study introduces a strain balanced model (SBM) of sandwich structure an ion slicing‐based compensation bonding method for fabricating ultrathin but self‐supporting thin films. Based on SBM...