A5091728319- GaN-based semiconductor devices and materials
- Quantum Dots Synthesis And Properties
- Organic Light-Emitting Diodes Research
- Semiconductor Lasers and Optical Devices
- Perovskite Materials and Applications
- Advanced Sensor and Energy Harvesting Materials
- Luminescence Properties of Advanced Materials
- Conducting polymers and applications
- ZnO doping and properties
- Thermal Radiation and Cooling Technologies
- Heat Transfer and Optimization
- Supercapacitor Materials and Fabrication
- Carbon and Quantum Dots Applications
- Tactile and Sensory Interactions
- Transition Metal Oxide Nanomaterials
- Photonic and Optical Devices
- Heat Transfer and Boiling Studies
- Advanced Surface Polishing Techniques
- Photonic Crystals and Applications
- Thin-Film Transistor Technologies
- Gas Sensing Nanomaterials and Sensors
- Nanocluster Synthesis and Applications
- Optical Wireless Communication Technologies
- Semiconductor Quantum Structures and Devices
- Solar Thermal and Photovoltaic Systems
South China University of Technology
2016-2025
Zhuhai Fudan Innovation Research Institute
2023
Zhuhai Institute of Advanced Technology
2023
University of California, Berkeley
2016-2019
Dalian University of Technology
2017
Abstract Ultrathin transition metal carbides with high capacity, surface area, and conductivity are a promising family of materials for applications from energy storage to catalysis. However, large-scale, cost-effective, precursor-free methods prepare ultrathin lacking. Here, we demonstrate direct pattern method manufacture (MoC x , WC CoC ) on versatile substrates using CO 2 laser. The laser-sculptured polycrystalline (macroporous, ~10–20 nm wall thickness, ~10 crystallinity) show...
In this study, we analyze the influence of pore structure an SBA-15 particle on light emission from its inner adsorbed quantum dots (QDs) and outer light-emitting diode (LED) chips. It is found that features a high refractive index, comparable feature size structure, lower amount QD adsorption help with extraction, demonstrating mechanism to suppress propagating through pores thus reducing reabsorption loss. We consequently developed highly efficient white LEDs wet-mixing QD/SBA-15...
High-voltage energy-storage devices are quite commonly needed for robots and dielectric elastomers. This paper presents a flexible high-voltage microsupercapacitor (MSC) with planar in-series architecture the first time based on laser-induced graphene. The capable of supplying output voltages ranging from few to thousands volts. measured capacitances 1, 3, 6 V MSCs were 60.5, 20.7, 10.0 μF, respectively, under an applied current 1.0 μA. After 5000-cycle charge-discharge test, MSC retained...
Abstract The mechanical properties of zinc anodes in rechargeable zinc‐based batteries are neglected. Indeed, electrode stress crystallization (ESZC) contributes to excess chemical potential under enormous deposition stress, severely impacting crystal patterns and reaction kinetics. Herein, a prerelease mechanism minimize ESZC drive dendrite‐free anode growth is proposed. internal the freestanding prereleased by full‐contact soft‐substrate constraints during fabrication. Under compression...
In this work, we report a polar-solvent-free, low-cost, and environmentally friendly method for synthesizing highly stable all-inorganic CsPbBr3 nanocrystals (NCs). Their shape size are controlled by adjusting key parameters in the synthesis, such as capping ligands well ultrasound power radiation time. The NCs tunable from three-dimensional to two-dimensional finally 0-dimensional, controlling ratios types of ligands. exhibit optical properties dependent on their size, with...
We developed a microreactor with porous copper fibers for synthesizing nitrogen-doped carbon dots (N-CDs) high stability and photoluminescence (PL) quantum yield (QY). By optimizing synthesis conditions, including the reaction temperature, flow rate, ethylenediamine dosage, porosity of fibers, N-CDs PL QY 73% were achieved. The was two times higher than without. interrelations between different porosities investigated using X-ray photoelectron spectroscopy (XPS) Fourier Transform infrared...
Quantum-dot (QD) white light-emitting diodes (LEDs) are promising for illumination and display applications due to their excellent color quality. Although they have a high quantum yield close unity, the reabsorption of QD light leads conversion loss, significantly reducing luminous efficacy stability LEDs. In this report, SBA-15 mesoporous particles (MPs) with two-dimensional hexagonal pore structures (2D-HPS) utilized largely enhance color-conversion efficiency LEDs in excess 50%. The...
Abstract At present, most of lead halide perovskite quantum dots (PQDs) embedded in an enclosed organic polymer or glass matrix can achieve high water stability, yet this limits their subsequent integration with light‐emitting diodes (LEDs) and other functional materials. Herein, a postadsorption process using superhydrophobic aerogel inorganic (S‐AIM) open structures is presented to enhance stability PQDs compose new functions them such as magnetism. The CsPbBr 3 integrated the S‐AIM...
Quantum dots (QDs) show a great potential for light-emitting diodes (LEDs) packaging, which still face challenges compared with the matured phosphor downconversion materials. These are probably caused by unique scattering and absorption properties of QDs, extremely different to traditional due their several nanometers size, while effect on QDs-converted LEDs (QCLEDs) is barely studied. In this paper, we have experimentally theoretically investigated CdSe/ZnS QDs optical performance QCLEDs...
Due to their good color rendering ability, white light-emitting diodes (WLEDs) with conventional phosphor and quantum dots (QDs) are gaining increasing attention. However, optical thermal performances still limited especially for the ones QDs-phosphor mixed nanocomposites. In this work, we propose a novel packaging scheme horizontally layered nanocomposites obtain an enhanced performance WLEDs. Three different WLEDs, including type, QDs-outside QDs-inside were fabricated compared. With...
The aim of this study was to estimate willingness pay (WTP) for long-term care insurance (LTCI) and explore the determinants demand LTCI in China. We collected data from a household survey conducted Qinghai Zhejiang on sample 1842 households. relied contingent valuation methods elicit random effects logistic regression analyze factors associated with LTCI. Complementarily, we used document analysis compare designed current policies pilot cities. More than 90% respondents expressed their buy...
We demonstrate an ultrasonication-assisted synthesis without polar solvent of CsPbBr 3 and Cs 4 PbBr 6 perovskite nanocrystals (PNCs) their reversible transformation. The as-prepared PNCs exhibit different optical properties that depend on morphology, size, structure. photoluminescence (PL) emission quantum yield (QY) the can be tuned by changing ultrasound power, radiation time, height vibrating spear. optimized show a good stability high PL QY up to 85%. In addition, phase transformation...