A5011423650- Advanced Sensor and Energy Harvesting Materials
- Polymer Nanocomposites and Properties
- Dielectric materials and actuators
- Surface Modification and Superhydrophobicity
- Flame retardant materials and properties
- Advanced Materials and Mechanics
- Synthesis and properties of polymers
- Luminescence and Fluorescent Materials
- Conducting polymers and applications
- Ferroelectric and Piezoelectric Materials
- MXene and MAX Phase Materials
- biodegradable polymer synthesis and properties
- Advanced Photocatalysis Techniques
- High voltage insulation and dielectric phenomena
- Polymer composites and self-healing
- Clay minerals and soil interactions
- Nanocluster Synthesis and Applications
- Ammonia Synthesis and Nitrogen Reduction
- Smart Materials for Construction
- Semiconductor Lasers and Optical Devices
- Nanocomposite Films for Food Packaging
- Radioactive element chemistry and processing
- Polydiacetylene-based materials and applications
- Polymer Nanocomposite Synthesis and Irradiation
- Catalytic Cross-Coupling Reactions
University of Connecticut
2019-2025
Instituto de Ciencia de Materiales de Sevilla
2019
London Rebuilding Society
2019
Lanzhou University
2018
State Key Laboratory of Applied Organic Chemistry
2018
Lanzhou City University
2018
Abstract The organic insulator–metal interface is the most important junction in flexible electronics. strong band offset of insulators over Fermi level electrodes should theoretically impart a sufficient impediment for charge injection known as Schottky barrier. However, defect formation through Anderson localization due to topological disorder polymers leads reduced barriers and hence cumbersome devices. A facile nanocoating comprising hundreds highly oriented organic/inorganic alternating...
Abstract Room temperature phosphorescent (RTP) materials with long‐lived, excitation‐dependent, and time‐dependent phosphorescence are highly desirable but very hard to achieve. Herein, this work reports a rational strategy of multiple wavelength excitation dynamic RTP color by confining silane‐functionalized carbon dots (CDs) in silica matrix (Si‐CDs@SiO 2 ). The Si‐CDs@SiO possesses unique green‐light‐excitation change from yellow green. A slow‐decaying at 500 nm lifetime 1.28 s...
A highly stable clay-based membrane was designed and fabricated that can be used for both salinity gradient energy conversion organic dye/water separation.
A 3D integration strategy is applied to fabricate multi-stimuli responsive chromic devices that respond UV, temperature, and mechanical stretching.
Significance Smart devices characterized by micro-/nanotopographies, such as cracks, wrinkles, folds, etc., have been fabricated for widespread application. Here, with the combination of multiscale hierarchical architecture, ultrathin metal nanocoatings high optical/photothermal tunability and morphological versatility, surface/interface engineering, a set multifunctional multistimuli responsiveness was fabricated. These can adapt to external stimuli reversible instantaneous responses in...
Abstract The design of a dynamic, versatile, convertible, and responsive micropatterned system is realized by photo/moisture reconstructible multiscale film‐substrate bilayer structure. Specifically, hydrophilic polyvinyl alcohol (PVA)/laponite (LP) thin film covalently bonded to photothermally active polydimethylsiloxane (PDMS)/carbon black (CB) soft substrate. A laser engraver can inscribe programmable aligned micro‐wrinkles manipulating power spatiotemporal control. These wrinkles be...
Abstract An adaptable stimuli responsive system is proposed based on defective graphitic carbon nitride (d‐GCN)/polyvinyl alcohol (PVA) composite attached to different substrates. Nitrogen vacancies, introduced during synthesis via potassium doping, act as internal electron donors enhance the photoreduction of redox dyes for quick reversible photochromism. This can be applied visible light rewritable paper that offers high resolution printed text, rapid activation/recoloration, multicolor...
Abstract A versatile wrinkle‐based micropatterned system with a film‐substrate structure is proposed, which contains hydrophilic film of polyvinyl alcohol or its composite laponite and hydrophobic substrate polydimethylsiloxane carbon black. The wrinkled features high design flexibility multistimuli responsiveness, can be activated by various mechanical methods, including vertical press scratch, gentle stretch‐and‐release, bend, analogous magneto‐mechanical electro‐mechanical modes....
The self-assembled anisotropic coating modifies the surface defects of amorphous polymers, inhibiting charge injection and greatly improving breakdown strength storage efficiency.
Polyvinyl alcohol (PVA)/laponite (LP) nanocomposite coatings were fabricated via a facile one-step coassembly process. The formed nanocoatings contain high concentration of LP nanosheets, which can be well aligned along the substrate surface during Due to highly orientated structure, flexible exhibit ultra-high transparency and superior mechanical properties, also act as excellent gas barriers. Such exceptional candidates for variety applications, such food packaging.
Montmorillonite (MMT) nanosheets were coassembled with poly(vinyl alcohol) (PVA) chains and applied to a poly(ethylene terephthalate) (PET) substrate via doctor-blade-assisted casting. The resulting coated PET had vastly improved oxygen barrier properties, thanks the highly ordered layered structure of MMT creating tortuous paths for molecular diffusion. layering ordering on solid are controlled by an array factors, some which can be coating process. To this end, parameters, including total...
Montmorillonite (MMT) nanosheets were coassembled with poly(vinyl alcohol) (PVA) via a spin-coating process. The resulting coating layer, consisting of multilayered nanocomposite structure, possessed an outstanding barrier property thanks to the highly ordered structure MMT creating tortuous path for molecular diffusion. process alignment and stacking on solid substrate is controlled by array factors, some which can be To this end, suspension concentration spin speed varied determine their...
Plastics films have been widely used in food packaging.But due to the environmental concerns of plastics films, there is a trend replacing with paper for packaging.To meet requirements packaging, must be modified improve its barrier properties.In this report, sonication and dip coating method was developed deposit polyvinyl alcohol (PVA)/montmorillonite (MMT) nanocoating on two representative substrates: regular cotton paper.The coated substrates were characterized by X-ray diffraction...
Flexible polymer dielectrics which can function well at elevated temperatures continue to be significant in harsh condition energy storage. However, state-of-the-art high-temperature polymers traditionally designed with conjugated structures for better thermal stability have compromised bandgaps and charge injection barriers. Here, we demonstrate a self-assembled polyvinyl alcohol (PVA)/montmorillonite (MMT) coating impede carriers injecting into the polyimide (PI) film. The anisotropic...
Nanosized α-zirconium phosphate (α-ZrP), unlike microcrystalline α-ZrP, takes less time to prepare and is synthesized directly in organic solvents. During the synthesis of nanosized heating step critical because during which particle growth/aggregation ongoing. In order explore more details this step, extra water molecules were intentionally introduced ethanol gel α-ZrP so that evaporation solvent was slowed. To heat gels at 65 °C for different periods (1-6 days), one could control with ease...
A self-assembled two-dimensional montmorillonite nanocoating enables significantly enhanced corona resistance in the Kapton film.