A5024375244- Acoustic Wave Resonator Technologies
- Advanced Sensor and Energy Harvesting Materials
- Advanced Fiber Optic Sensors
- Gas Sensing Nanomaterials and Sensors
- Advanced MEMS and NEMS Technologies
- Mechanical and Optical Resonators
- Adhesion, Friction, and Surface Interactions
- Ultrasonics and Acoustic Wave Propagation
- Surface Modification and Superhydrophobicity
- Music Technology and Sound Studies
- Biosensors and Analytical Detection
- Acoustic Wave Phenomena Research
- Analytical Chemistry and Sensors
- Ferroelectric and Piezoelectric Materials
- Underwater Acoustics Research
- Photoacoustic and Ultrasonic Imaging
- Bacteriophages and microbial interactions
- Microfluidic and Bio-sensing Technologies
- Advanced Chemical Sensor Technologies
- Icing and De-icing Technologies
Hunan University
2021-2025
Flexible and wearable acoustic wave technology has recently attracted tremendous attention due to their wide-range applications in electronics, sensing, acoustofluidics, lab-on-a-chip, attributed its advantages such as low power consumption, small size, easy fabrication, passive/wireless capabilities. Great effort been made development, characterization of rationally designed structures for next-generation based flexible electronics. Herein, advances fundamental principles, design, devices...
Fogging, icing, or frosting on optical lenses, optics/photonics, windshields, vehicle/airplane windows, and solar panel surfaces have often shown serious safety concerns with hazardous conditions impaired sight. Various active techniques, such as resistive heating, passive icephobic treatments, are widely employed for their prevention elimination. However, these methods not always suitable, effective, efficient. This review provides a comprehensive overview of the fundamentals recent...
Abstract Flexible surface acoustic wave (SAW) devices have recently attracted tremendous attention for their widespread application in sensing and microfluidics. However, these applications, SAW often need to be bent into off-axis deformations between the propagation direction bending direction. Currently, there are few studies on this topic, mechanisms during remained unexplored multisensing applications. Herein, we fabricated aluminum nitride (AlN) flexible by using high-quality AlN films...
Abstract Flexible surface acoustic wave technology has garnered significant attention for wearable electronics and sensing applications. However, the mechanical strains induced by random deformation of these flexible SAWs during often significantly alter specific signals, causing critical issues such as inconsistency results on a curved/flexible surface. To address this challenge, we first developed high-performance AlScN piezoelectric film-based SAW sensors, investigated their response...
Abstract Surface acoustic wave (SAW) technology has been widely developed for ultraviolet (UV) detection due to its advantages of miniaturization, portability, potential be integrated with microelectronics, and passive/wireless capabilities. To enhance UV sensitivity, nanowires (NWs), such as ZnO, are often applied SAW-based their highly porous interconnected 3D network structures good sensitivity. However, ZnO NWs normally hydrophilic, thus, changes in environmental parameters humidity will...
Thin film-based surface acoustic wave (SAW) technology has been extensively explored for physical, chemical, and biological sensors. However, these sensors often show inferior performance a specific sensing in complex environments, as they are affected by multiple influencing parameters their coupling interferences. To solve critical issues, we propose methodology to extract information from the scattering parameter combine machine learning method achieve multi-parameter decoupling. We used...
Abstract There are great concerns for sensing using flexible acoustic wave sensors and lab-on-a-chip, as mechanical strains will dramatically change the signals (e.g., frequency) when they bent during measurements. These strain-induced signal changes cannot be easily separated from those of real humidity, ultraviolet, or gas/biological molecules). Herein, we proposed a new strategy to minimize/eliminate effects bending by optimizing off-axis angles between direction deformation propagation...
Humidity sensing and water molecule monitoring have become hot research topics attributed to their potential applications in breathing/physiological conditions of humans, air conditioning greenhouses, soil moisture agriculture. However, there is a huge challenge for highly sensitive precision humidity detection with wireless fast responsive capabilities. In this work, hybrid/synergistic strategy was proposed using LiNbO3/SiO2/SiC heterostructure generate shear-horizontal (SH) surface...
Strain sensors are crucial for development of smart systems, providing valuable feedback on the conditions structures and mechanical components. However, there is a huge challenge highly accurate detection both strain intensity direction (i.e., omnidirectional strain) using one single sensor, mainly because only signal feature commonly obtained from device. To overcome this limitation, we proposed strategy to achieve by applying flexible surface acoustic wave (SAW) empowered machine learning...
Surface acoustic wave (SAW) devices are powerful platforms for mass sensing, chemical vapor or gas detection, and biomolecular identification. Great efforts have been made to achieve high sensitivities by using super-high-frequency SAW devices. Conventional sensing is based on mass-loading effects at the propagation (or delay line) region between two interdigitated transducers (IDTs). However, many with their small sizes, there a huge challenge that sensitivity difficult be further...
Surface acoustic wave (SAW) micro-mass sensors have garnered significant attention due to their versatile applications in medical measurements, industrial production quality control, and environmental pollution monitoring. Traditional devices of this kind often grapple with the predicament operating at low frequencies, typically below 2 GHz, relying on Rayleigh sensing mode. This can undermine capability for highly sensitive detection. Herein, we present manufacture application a high...
Love-mode surface acoustic wave (SAW) sensors show great promise for biodetection applications owing to their low cost, digital output, and wireless passive capability, but performance is often restricted by the availability of suitable sensitive membrane layers. Herein, a composite layer electrospun fibers made from cellulose acetate polyethylenimine, coated with gold nanoparticles, proposed as porous onto love-mode SAW biosensor monitoring gene sequences
Ultraviolet (UV) detectors based on surface acoustic wave (SAW) technology offer unique advantages of remote or wireless operation capability with a potential zero power consumption. Frequency shift SAW devices induced by UV irradiation is mainly caused acoustoelectric and thermal effects, although mass-loading photo-capacitive effects might also have minor influences. Currently, the individual contribution from either effect for sensing has not been thoroughly studied. In this work, we...
MEMS microphone has a wide range of application prospects in electronic devices such as mobile phones, headphones, and hearing aids due to its small size, low cost, reliable performance. Research development microphones involves multiple thermo-electro-mechanical couplings among various physical electrical fields. Unfortunately, there is not an accurate three-dimensional (3D) simulation platform, which can be applied for the design chip parameters packaging characteristics. Herein, based on...