A5013330640- Organic Electronics and Photovoltaics
- Nanomaterials and Printing Technologies
- Thin-Film Transistor Technologies
- Electrohydrodynamics and Fluid Dynamics
- Advanced Sensor and Energy Harvesting Materials
- Infection Control and Ventilation
- Fuel Cells and Related Materials
- Aerosol Filtration and Electrostatic Precipitation
- Dental Research and COVID-19
- Electric and Hybrid Vehicle Technologies
- Multilevel Inverters and Converters
- Electrocatalysts for Energy Conversion
- Advanced Materials and Mechanics
- Advanced DC-DC Converters
- Textile materials and evaluations
- Scientific and Engineering Research Topics
- Fluid Dynamics and Heat Transfer
- Induction Heating and Inverter Technology
- Nanowire Synthesis and Applications
- Optical properties and cooling technologies in crystalline materials
- Electrospun Nanofibers in Biomedical Applications
- Surface Modification and Superhydrophobicity
- Nuclear Materials and Properties
- Perovskite Materials and Applications
- Electrowetting and Microfluidic Technologies
Southern University of Science and Technology
2021-2024
Xi'an Jiaotong University
2022
Atmospheric particulate matter (PMs) pollution has raised increasing public concerns, especially with the outbreak of COVID-19. The preparation high-performance membranes for air filtration is great significance. Herein, biosynthetic polymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) was adopted to create a hierarchical structure and biodegradable nonwoven membrane PMs through facile directly electrospinning method. as-prepared contain abundant nanowires (5-100 nm) microfibers (2-5...
Abstract All printing of organic photovoltaics (OPVs) including the top electrode is highly desirable for achieving cost‐effective, high‐throughput, and large‐area photovoltaic manufacturing. Here, a low‐melting‐point alloy as electrodes in OPVs via blade coating investigated. The Field's metal (FM) with melting point 62 °C adopted electrodes, because FM can be printed under moderate temperatures without harming active layers while remaining solid state solar irradiation. correlations...
Proton exchange membrane fuel cell (PEMFC) has become one of the key power sources for electrical transportation. As demand increases, active area PEMFC becomes larger. However, under same operating conditions and with materials, performance commercial large-area cells (LAFCs) differ from those laboratory-level small-area (SAFCs) due to uneven distribution internal states, such as gas water content. This phenomenon is referred size effect. Investigating mechanism effect essential designing...
Air-stable pure-red emissive perovskite films with high photoluminescence quantum yields have been achieved by Lewis base–acid interaction of polymer additive. Laser direct writing patterned complex displays in micrometer size on the films.
Aerosol-printed organic solar cells based on PTQ10:Y6-BO achieve a power conversion efficiency (PCE) of 15.65%. Three functional layers are printed continuously convey belt, and the all-aerosol-printed reach PCE up to 14.78%.
Abstract The rapid surge in the power conversion efficiencies (PCEs) of organic photovoltaics (OPVs) calls for a simple and efficient solar tracking strategy to maintain normal incidence light fully use energy. Here this study proposes new approach based on kirigami by taking advantage paper‐like OPVs made flexible substrates. pattern is judicially designed form three separate regions beams, hinges, devices. stretching force applied which cause out‐of‐plane deformation rotating device...
Scalable and roll-to-roll compatible processing methods have become pressing needs to transfer organic solar cells (OSCs) realistic energy sources. Herein a new fabrication method of flexible microcomb printing is proposed. The based on PET sheet micromachined into comb teeth by laser marker. A computational fluid mechanics simulation shows that the flow around induces high shear as well extensional strain rates, which enhance molecular alignment lateral mass transport. PTQ10:Y6-BO OSCs...
Face masks play a critical role in reducing the transmission risk of COVID-19 and other respiratory diseases. Masks made with nanofibers have drawn increasingly more attention because their higher filtration efficiency, better comfort, lower pressure drop. However, interactions consequences microwater droplets remain unclear. In this work, evolution fibers polymers different contact angles, diameters, mesh sizes under water aerosol exposure is systematically visualized. The images show that...
Abstract Depositing all functional layers (including the top electrode) with spray methods is highly desirable and challenging for eventual commercialization of organic solar cells (OSCs). This work addresses two key challenges toward fully‐sprayed OSCs: i) printing a high‐quality photoactive layer free coffee rings ii) electrode without need evaporation nor solvents. To eliminate caused by individual droplets, deposited electrospray on cooled substrate. The reduced temperature slows down...
Developing manufacturing methods that are scalable and compatible with a roll-to-roll process low waste of material has become pressing need to transfer organic photovoltaics (OPVs) viable renewable energy source. For this purpose, various spray printing have been proposed. Among them, electrospray (ES) is an attractive option due its negligible waste, tunable droplet size, tolerance the substrate defects roughness. Conventional ES circular footprint often makes droplets well separated...
Abstract The top electrodes of organic solar cells (OSCs) are usually deposited by thermal evaporation in vacuum, which has become the major obstacle toward fully‐printed OSCs. vacuum‐free printed highly desirable for continuous production Here, printing low‐melting‐point alloy (LMPA) as cathodes OSCs based on D18:Y6 system is investigated. Field's metal (FM) focused with a melting point 62 °C, could be under moderate temperatures that harmless to active layers and solidifies at room...
Abstract Top electrodes of organic photovoltaics (OPVs) are usually thermally evaporated in the vacuum, which is non‐continuous and time‐consuming has been bottleneck for OPV fabrication process. Printable top that free high temperature, solvents will make OPVs more attractive. Low‐melting‐point alloys (LMPAs) promising candidates printable thanks to merits matching work functions, electron conductivity, environment stability, no need post‐treatment. Here, LMPA directly deposited on by...
The COVID-19 pandemic imposes a severe challenge to the health care providers and patients in dental clinics as procedures produce abundant airborne materials. Although practices use multi-layered protective procedure reduce potential danger from aerosols, it is still beneficial suppress aerosol generation origin much possible. Reducing (especially droplets of smaller diameters) very beginning will ease burden on all subsequent layers protection. In this work, we first provide relatively...
A laser was used to create cracks in gas diffusion layer (GDL) that influences liquid water transport from the electrodes channels. The generated length is 50 2000 μm. three-dimensional numerical model built investigate characteristics through with different length. Experiments and simulation results show there a better correlation among of perforation power density. When μm, transfer effect best which enhances drain effectively avoids droplets obstructing flow channel at same time. These...