A5022705524- Advanced Sensor and Energy Harvesting Materials
- Surface Modification and Superhydrophobicity
- Solar-Powered Water Purification Methods
- Electrowetting and Microfluidic Technologies
- Energy Harvesting in Wireless Networks
- Electrohydrodynamics and Fluid Dynamics
- Conducting polymers and applications
- Innovative Energy Harvesting Technologies
- Advanced Materials and Mechanics
- Modular Robots and Swarm Intelligence
- Adhesion, Friction, and Surface Interactions
- Fluid Dynamics and Heat Transfer
- Tactile and Sensory Interactions
- Thermal Radiation and Cooling Technologies
- Pickering emulsions and particle stabilization
- Micro and Nano Robotics
- Innovative Microfluidic and Catalytic Techniques Innovation
- Membrane Separation Technologies
- Transition Metal Oxide Nanomaterials
- Icing and De-icing Technologies
- Analytical Chemistry and Sensors
- Ga2O3 and related materials
- Dielectric materials and actuators
- Perovskite Materials and Applications
- Electrochemical sensors and biosensors
City University of Hong Kong
2019-2024
Hong Kong Polytechnic University
2022-2024
University of Science and Technology of China
2017-2020
Hefei University
2017
Mussel-inspired conductive hydrogels are attractive for the development of next-generation self-adhesive, flexible skinlike sensors. However, despite extensive progress, there still some daunting challenges that hinder their applications, such as inferior optical transparency, low catechol content (e.g., poor adhesion), well limited sensation performances. Here, we report a dopamine-triggered gelation (DTG) strategy fabricating mussel-inspired, transparent, and hydrogels. The DTG design...
Abstract Water covers about 70% of the earth's surface and contains tremendous energy that remains untapped. Despite success in harvesting hydrodynamic based on heavy‐weight bulky electromagnetic generators, a great deal water energies stored low‐frequency flow such as form raindrops, river/ocean waves, tide, remain largely In spite diversity development strategies working mechanisms, engineering efficient devices, especially nanogenerators, requires elegant control interfacial properties...
Energy harvesting devices that prosper in harsh environments are highly demanded a wide range of applications ranging from wearable and biomedical to self-powered intelligent systems. Particularly, over the past several years, innovation triboelectric nanogenerators (TENGs) efficiently convert ambient kinetic energy water droplets or wave power electricity has received growing attention. One main bottlenecks for practical implications such originates fast degradation physiochemical...
Significance The manipulation of liquid droplets plays a crucial role in multidisciplinary applications. However, existing methods still face many challenges, such as short distance, low velocity, restricted operating conditions, the need for extra responsive additives droplet, and so on. To circumvent these constraints, here we develop droplet electrostatic tweezer to trap or faithfully guide motion remote manner. Our method allows high flexibility precision manipulating different types,...
Manipulating liquid is of great significance in fields from life sciences to industrial applications. Owing its advantages manipulating liquids with high precision and flexibility, electrowetting on dielectric (EWOD) has been widely used various Despite this, efficient operation generally needs electrode arrays sophisticated circuit control. Here, we develop a largely unexplored triboelectric wetting (TEW) phenomenon that can directly exploit the charges achieve programmed precise water...
High-performance and fully transparent droplet energy harvesting panels for hybrid rain-solar self-powered forest monitoring.
Abstract The past several years have witnessed the rapid development in effectively transforming randomly distributed water kinetic energy into electrical energy, especially triggered by emergence of droplet‐based electricity generators (DEG). Despite this, it still suffers from relatively low average power density, which is also achieved at cost long charging time, time to reach stable and saturated surface charge density either through continuous droplet impingement or precharging....
Abstract Harvesting energy from water, in the form of raindrops, river, and ocean waves, is considerable importance has potential applications self‐powered electronic devices large‐scale needs. Recently, droplet‐based electricity generator shown an increase by several orders magnitude electrical output, overcoming drawback traditional device limited interfacial effects. Despite this exciting result, output performance novel relatively low frequency impinging droplets owing to formation a...
Shaping soft and conductive materials into preferential architectures via 3D printing is highly attractive for numerous applications ranging from tactile devices to bioelectronics. A landmark type of hydrogels/ionogels. However, 3D-printed hydrogels/ionogels still suffer a fundamental bottleneck: limited stability in their electrical-mechanical properties caused by the evaporation leakage liquid within Although photocurable liquid-free ion-conducting elastomers can circumvent these...
Bubbles have been extensively explored as energy carriers ranging from boiling heat transfer and targeted cancer diagnosis. Yet, despite notable progress, the kinetic inherent in small bubbles remains difficult to harvest. Here, we develop a transistor-inspired bubble generator for directly efficiently harvesting bubbles. The key points lie designing dielectric surface with high-density electric charges tailored wettability well electrode configuration. synergy between these features...
Harvesting water energy in various forms of motion, such as evaporation, raindrops, river flows, ocean waves, and other, is promising to relieve the global crisis reach aim carbon neutrality. However, this highly decentralized distributed poses a challenge on conventional electromagnetic hydropower technologies that feature centralization scalization. Recently, problem has been gradually addressed by emergence myriad electricity generators take inspiration from natural living organisms,...
Abstract Developing robust technologies to harvest energy from ambient environments is critical applications in self‐powered electronics. As a promising candidate, droplet‐based electricity generators with transistor‐inspired architecture, which consist of electrodes and dielectric material, have manifested superior capacity gain sustainable water. Despite extensive achievement, these devices are significantly limited by insufficient flexibility unstable performance owing the presence...
Taxis is an instinctive behavior of living organisms to external dangers or benefits. Here, we report a taxis-like associated with liquid droplets on charged substrates in response the stimuli, referred as droplet electrotaxis. Such electrotaxis enables us use either solid (such water) matter, even human finger, stimuli spatiotemporal precisely manipulate various physicochemical properties, including water, ethanol low surface tension, viscous oil, and so on. Droplet also features flexible...
Abstract Harnessing ambient renewable mechanical energies for achieving carbon‐neutrality demands the rational design of materials and architectures which are favorable both energy collection conversion simultaneously. However, direct coupling modules leads to many unwanted problems such as material wearing, spatial constraint large‐scale integration, low efficiency. Herein, a remote‐controlled harvesting strategy that cleverly harnesses unique advantage diffusive, long‐range airflow within...
Abstract Harvesting renewable water energy in various formats such as raindrops, waves, and evaporation is one of the key strategies for achieving global carbon neutrality. The recent decade has witnessed rapid advancement droplet‐based electricity generator (DEG) with a continuous leap instantaneous output power density from 50 W/m 2 to several kW/m . Despite this, further pushing upper limit performance DEG still constrained by low surface charge long precharging time. Here, we report...
Abstract Liquid-solid contact electrification (CE) is essential to diverse applications. Exploiting its full implementation requires an in-depth understanding and fine-grained control of charge carriers (electrons and/or ions) during CE. Here, we decouple the electrons ions liquid-solid CE by designing binary superhydrophobic surfaces that eliminate liquid ion residues on simultaneously enable us regulate surface properties, namely work function, electron transfers. We find existence a...
Just as the innovation of electronic diodes that allow current to flow in one direction provides a foundation for development digital technologies, engineering surfaces or devices directional and spontaneous transport fluids, termed liquid diodes, is highly desired wide spectrum applications ranging from medical microfluidics, advanced printing, heat management water collection oil-water separation. Recent advances manufacturing, visualization techniques, biomimetics have led exciting...