A5036484497- Organic Light-Emitting Diodes Research
- Organic Electronics and Photovoltaics
- Luminescence and Fluorescent Materials
- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Conducting polymers and applications
- Differential Equations and Numerical Methods
- Nonlinear Differential Equations Analysis
- Molecular Junctions and Nanostructures
- Thin-Film Transistor Technologies
- Strong Light-Matter Interactions
- Carbon and Quantum Dots Applications
- Photonic and Optical Devices
- ZnO doping and properties
- Chalcogenide Semiconductor Thin Films
- Transition Metal Oxide Nanomaterials
- Photonic Crystals and Applications
- Differential Equations and Boundary Problems
- Gas Sensing Nanomaterials and Sensors
- Nanocluster Synthesis and Applications
- Luminescence Properties of Advanced Materials
- Semiconductor Lasers and Optical Devices
- Analytical Chemistry and Sensors
- GaN-based semiconductor devices and materials
- Lanthanide and Transition Metal Complexes
Chinese Academy of Sciences
2016-2025
Changchun Institute of Optics, Fine Mechanics and Physics
2016-2025
Gansu University of Traditional Chinese Medicine
2024-2025
Ministry of Agriculture and Rural Affairs
2022-2024
Beijing University of Agriculture
2023-2024
Inner Mongolia University of Technology
2023-2024
Hebei Medical University
2024
Fourth Hospital of Hebei Medical University
2024
Jilin University
2021-2024
Daqing Oilfield of CNPC
2024
C-dots on hand: Luminescent carbon nanodots were synthesized and shown to be biocompatible, have low toxicity, distinctive photoluminescence properties. These are inexpensive synthesize could potentially used for versatile applications, such as anticounterfeiting, information encryption, storage. Detailed facts of importance specialist readers published "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by the authors. Please...
A facile solvothermal route to synthesize S,N co‐doped graphene quantum dots (S,N‐GQDs) with unique optical properties is demonstrated. Three absorption bands are observed at 338, 467, and 557 nm, which different from any previous reports. The photoluminescent spectra display emissions in three primary colors that independent of the excitation wavelength, within wavelength ranges 340–420 460–540 560–620 nm. PL indicate each emission related a single band. It proposed luminescent centers...
C-Punkte zur Hand: Biokompatible lumineszierende Kohlenstoffnanopunkte mit geringer Toxizität und charakteristischer Photolumineszenz wurden synthetisiert. Diese „C-Punkte“ könnten sich für vielfältige Anwendungen eignen, z. B. als Fälschungssicherung sowie Verschlüsselung oder Speicherung von Informationen.
A one-step microwave synthesis of N-doped hydroxyl-functionalized carbon dots (CDs) with ultra-high fluorescence quantum yields (QYs) 99% is reported. These QY CDs were synthesized using citric acid and amino compound-containing hydroxyls like ethanolamine tris(hydroxylmethyl)aminomethane. Amino carboxyl moieties can form amides through dehydration condensation reactions, these act as bridges between hydroxyl groups, modify groups on the surface CDs. The entire reaction be carried out within...
In this work, the optical properties of carbon nanoparticles (CNPs) can be modulated by dopant‐N atom and sp 2 C‐contents. CNPs prepared with low urea mass ratio 0.2:1 (CNP1) exhibit blue emission (maximum PL quantum yield: 15%). Increasing C‐ contents, as determined in high 2:1 (CNP2), lead to green yield up 36% ethanol aqueous solution). Amplified spontaneous (ASE) observed only CNP2 solution. Green lasing is achieved from solution a linear long Fabry‐Perot cavity, indicating potential...
A construction strategy for ratiometric fluorescent nanosensors based on water soluble C-dots was developed, which could sense temperature (10–82 °C), pH values (lower than 6.0 or higher 8.6) and Fe3+ ions (>0.04 μM) by monitoring the intensity ratios of dual fluorescence bands (Ib/Ig) under 380 nm excitation. Ib/Ig decreased nearly linearly with increasing from 10 to 82 °C. In range 8.6 6.0, constant at 0.75. gradually 0.75 0.52 in 1.9, increased 1.9 1.0. The behavior reversible 1.0 8.6. As...
High-efficiency blue CdSe/ZnS quantum dots (QDs) have been synthesized for display application with emission peak over 460 nm the purpose of reducing harmful effect short-wavelength light to human eyes. To reach a better charge balance, different size ZnO nanoparticles (NPs) were and electrical properties NPs analyzed. Quantum dot light-emitting diodes (QLEDs) based on as-prepared QDs optimized successfully fabricated. Using small-size NPs, we obtained maximum current efficiency (CE) 14.1 cd...
For practical applications of carbon dots (CDs), a major challenge is to prevent the notorious aggregation-caused quenching (ACQ) effect. Herein, new type CDs (CD1) has been developed that can transform from ACQ an enhancement fluorescence by aggregation-induced emission (AIE). The blue suppressed ACQ. However, this accompanied phenomenon AIE at longer wavelength, resulting in emergence and gradual yellow fluorescence. obtained CD1 solid powder shows bright with photoluminescence quantum...
Efficient inorganic perovskite light-emitting diodes (PeLEDs) with an ultrathin emission layer (∼30 nm) were realized by doping Lewis base polyethylene glycol (PEG) into CsPbBr3 films. PEG in the films not only physically fills crystal boundaries but also interacts crystals to passivate grains, reduce nonradiative recombination, and ensure efficient luminance high efficiency. As a result, promoted brightness, current efficiency (CE), external quantum (EQE) achieved. The decay rate of...
Wiry solar cells: A solution-phase synthetic approach gave monocrystalline SnSe nanowires with a mean diameter of approximately 20.8 nm and lattice distance 0.575 (see HRTEM image). Hybrid cells based on blend these poly(3-hexylthiophene) (P3HT) were fabricated. Detailed facts importance to specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by the authors. Please note: The publisher is...
Methylammonium (MA) lead halide (MAPbX3, X = Cl, Br, I) perovskite quantum dots (PQDs) are very sensitive to environment (moisture, oxygen, and temperature), suffering from poor stability. To improve the stability, we synthesized silica-coated PQDs (SPQDs) by an improved ligand-assisted reprecipitation method through simply mixing stirring under room temperature in air without adding water catalyst, whole process took only a few seconds. The photoluminescence (PL) spectra of SPQDs can be...
Photocatalytic ammonia synthesis is another important reaction to mimic natural nitrogen fixation, which has attracted more and attention. In recent reports, sacrificial agents are often used promote charge separation, high-activity photocatalysts discovered by using Nessler's reagent method as a detection technique of production. However, there an open question on the rationality accuracy production amount in presence agent method. this report, P25 TiO2 employed model photocatalyst alcohol...
Abstract Lattice matching and passivation are generally seen as the main beneficial effects in 2D/3D perovskite heterostructured solar cells, but understanding of mechanisms involved is still incomplete. In this work, it shown that heterostructure unstable under common thermal processing conditions, caused by lattice expansion strained 2D perovskite. Therefore an innovative fabrication technology involving a compressively PEA 2 PbI 4 layer proposed to compensate internal tensile strain...
Transparent electrodes with a dielectric–metal–dielectric (DMD) structure can be implemented in simple manufacturing process and have good optical electrical properties. In this study, nickel oxide (NiO) is introduced into the DMD as more appropriate dielectric material that has high conduction band for electron blocking low valence efficient hole transport. The indium-free NiO/Ag/NiO (NAN) transparent electrode exhibits an adjustable transmittance of ∼82% combined sheet resistance ∼7.6...
Although inorganic perovskite solar cells (PSCs) are promising in thermal stability, their large open-circuit voltage (VOC ) deficit and difficulty large-area preparation still limit development toward commercialization. The present work tailors C60 via a codoping strategy to construct an efficient electron-transporting layer (ETL), leading significant improvement VOC of the inverted CsPbI2 Br PSC. Specifically, tris(pentafluorophenyl)borane (TPFPB) is introduced as dopant lower lowest...
Carbon nanodots (CDs) are known to be a superior type of lasing material due their low cost, toxicity, high photostability, and photobleaching resistance. Significant attention has been paid synthesizing CDs with fluorescence quantum yields (FLQYs) achieve higher optical gains. In this report, we reveal that excitation wavelength-independent (λex-independent) photoluminescence (PL) characteristics, rather than FLQYs, should given priority realize CD-based light amplification....
Carbon dots (CDs) that exhibit emission over the whole visible spectrum are desired for use in light-emitting diodes (LEDs). Here, CDs displaying tunable fluorescence region synthesized. Different concentrations of uniformly dispersed epoxy resin and coated on 405 nm LED chips to obtain monochrome blue, cyan, green, yellow, red, deep red LEDs yield a color gamut covering 99.4% National Television Standards Committee (NTSC) standard. These display similar high stability. Furthermore, warm...
Grassland degradation has caused increasingly prominent conflict between ecological environment conservation and socioeconomic development in the Qilian Mountains, China. How to effectively trade-offs synergies is essential achieving sustainable of grassland ecosystem. However, few studies have addressed ecosystem services terms coupling natural system. Therefore, we constructed an index analyzed from perspective "ecological-production-living" functions (EPLFs) spatial-temporal...
Electrochromic (EC) technology can adjust optical properties under electrical stimulation with broad applications in smart windows, displays, and camouflage. However, significant challenges remain developing inorganic EC films high durability, rapid response, mechanical flexibility due to intrinsic brittleness dense microstructure. Herein, a nanostructured quasiplanar heterointerface (Q-PHI) is first introduced into the electrode/EC interlayer realize robust, ultrafast switching tungsten...
Abstract Transparent electrodes are essential components for optoelectronic devices, such as touch panels, organic light-emitting diodes and solar cells. Indium tin oxide (ITO) is widely used transparent electrode in devices. ITO has high transparency low resistance but contains expensive rare elements ITO-based devices have poor mechanical flexibility. Therefore, alternative with excellent opto-electrical performance flexibility will be greatly demanded. Here, organics introduced into...