A5024080797- Fluid Dynamics and Heat Transfer
- Surface Modification and Superhydrophobicity
- nanoparticles nucleation surface interactions
- Icing and De-icing Technologies
- Innovative Microfluidic and Catalytic Techniques Innovation
- Nanomaterials and Printing Technologies
- Gold and Silver Nanoparticles Synthesis and Applications
- Plasmonic and Surface Plasmon Research
- Electrohydrodynamics and Fluid Dynamics
- Electrowetting and Microfluidic Technologies
- Arctic and Antarctic ice dynamics
- Advanced biosensing and bioanalysis techniques
- Nanowire Synthesis and Applications
- Fluid Dynamics and Thin Films
- Fluid Dynamics Simulations and Interactions
- Freezing and Crystallization Processes
- Smart Materials for Construction
- Experimental and Theoretical Physics Studies
- melanin and skin pigmentation
- Semiconductor materials and devices
- Semiconductor materials and interfaces
- Magnetic and Electromagnetic Effects
- Thermal Radiation and Cooling Technologies
- Microfluidic and Capillary Electrophoresis Applications
- Acoustic Wave Phenomena Research
Tsinghua University
2020-2024
University of Illinois Urbana-Champaign
2021
National Tsing Hua University
2012-2013
Icing of seawater droplets is capable causing catastrophic damage to vessels, buildings, and human life, yet it also holds great potential for enhancing applications such as droplet-based freeze desalination anti-icing sea sprays. While large-scale ice growth has been investigated decades, the icing features small salty remain poorly understood. Here, we demonstrate that droplet governed by salt rejection-accompanied crystal growth, resulting in freezing dynamics different from pure water....
Superhydrophobic surfaces decorated with macrostructures have attracted extensive attention due to their excellent performance of reducing the contact time impacting droplets. In many practical applications, surface is not perpendicular droplet impact direction, but dynamics in such scenarios still remain mysterious. Here, we experimentally investigate on inclined ridged superhydrophobic and reveal effect Wen (the normal Weber number) α inclination angle) τ. As increases, τ first decreases...
Simple and smart directional transport of impacting droplets is great significance for future life industry, but there are still many challenges due to complex hydrodynamics. Inspired by Setaria viridis leaves, we propose an efficient strategy manipulate the split based on simple design liquid-repellent surfaces decorated with a ridge, report large-scale, high-speed, fast-response bidirectional droplets. Upon wirelike droplet splits into two parts, which have considerable horizontal velocity...
The formation of ice nuclei in seawater droplets on supercooled solid surfaces is a prevalent phenomenon nature and industrial applications. However, the statistical characteristics mechanism types salt affecting their nucleation temperature remain poorly understood. This study experimentally investigates process saltwater surfaces, focusing effects salinity, droplet volume, temperature. results reveal that temperatures with varying salinities, volumes, exhibit stochastic behavior conform to...
Aluminum and its alloys are widely used in various industries. plays an important role heat transfer applications, where enhancing the overall system performance through surface nanostructuring is achieved. Combining optimized nanostructures with a conformal hydrophobic coating leads to superhydrophobicity, which enables coalescence induced droplet jumping, enhanced condensation transfer, delayed frosting. Hence, development of rapid, energy-efficient, highly scalable fabrication method for...
Gallium-based liquid metal is a new class of material that has attracted extensive attention due to its excellent deformation characteristics and great potential in applications. Based on the droplets, researchers have developed many oscillation systems composed gallium indium tin alloy (GaInSn) droplet graphite, or aluminum-doped (Al-GaIn24.5) iron, so on. Rather than oxidation deoxidation mechanisms used previous systems, an system can achieve (EGaIn) with frequency 0–29 Hz designed...
The transportation and control of microfluidics have an important influence on the fields biology, chemistry, medicine. Pump systems based electrocapillary effect room-temperature liquid metal droplets attracted extensive attention. Flow rate is parameter that reflects delivery performance pump systems. In previous studies, cylindrical structures are mostly used to constrain droplet. analysis quantitative description voltage frequency, alternating voltage, direct current bias, solution...
Au nanocrystal array/silicon nanoantennas exhibiting wavelength-selective photocurrent enhancement were successfully fabricated by a facile and inexpensive method combining colloidal lithography (CL) metal-assisted chemical etching (MaCE) process. The localized surface plasmon resonance (LSPR) response characteristics achieved tuning the depth of immersion arrays in silicon through MaCE wavelength selectivity contributed LSPR induced local field amplification was confirmed simulated...
One-dimensional metal silicide nanowires are excellent candidates for interconnect and contact materials in future integrated circuits devices. Novel core-shell Ni(2)Si/C54-TiSi(2) nanowires, 2 μm length, were grown controllably via a solid-liquid-solid growth mechanism. Their interesting ferromagnetic behaviors electrical properties have been studied detail. The coercivities (Hcs) of the was determined to be 200 50 Oe at 4 300 K, respectively, resistivity measured as low 31 μΩ-cm. shift...
We demonstrated large-area, high density, hexagonal close-packed, single crystalline metal (Au, Ag) nanocrystal arrays with controllable crystal sizes of tens nanometers, center-to-center spacing and uniform size distribution by colloidal lithography the surface energy driven dewetting process. Larger than 30 × 40 μm2 superlattice domain were formed on Si can be transferred to flexible substrates, illustrating versatility realize various substrates. The large-area close-packed spacings...
The self-propelled motion of boiling droplets has attracted strong interest, and major discoveries are concentrated in the film regime, e.g., translational Leidenfrost drops on ratchets, wheels. However, little attention was paid to regimes below point. Here, we focus those discover a gyroscopic rotation phenomenon that is ubiquitous various types surfaces with diverse wettability microstructures. occurrence can be attributed viscous stress from vapor/bubble flows gaps surface...