A5100360462- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Heat transfer and supercritical fluids
- Conducting polymers and applications
- Organic Light-Emitting Diodes Research
- Nuclear Materials and Properties
- Solid-state spectroscopy and crystallography
- Nuclear reactor physics and engineering
- Chalcogenide Semiconductor Thin Films
- Luminescence Properties of Advanced Materials
- Microwave Engineering and Waveguides
- Optical properties and cooling technologies in crystalline materials
- Wireless Power Transfer Systems
- Advanced MEMS and NEMS Technologies
- Force Microscopy Techniques and Applications
- Pulsed Power Technology Applications
- Advanced Condensed Matter Physics
- Mechanical and Optical Resonators
- Energy Harvesting in Wireless Networks
- Heat Transfer and Optimization
- Electric Motor Design and Analysis
- Nanoporous metals and alloys
- Organic and Molecular Conductors Research
- Machine Learning in Materials Science
- Forensic Toxicology and Drug Analysis
Wuhan University of Technology
2025
Shaanxi Normal University
2023-2024
China General Nuclear Power Corporation (China)
2024
Northwestern Polytechnical University
2023-2024
Yancheng Institute of Technology
2023
Shanghai Jiao Tong University
2013-2022
Shanghai University
2017
Under illumination of light-emitting diode (LED) or sunlight, the green color all-inorganic CsPbBr3 perovskite nanocrystals (CPB-NCs) often quickly changes to yellow, followed by large photoluminescence (PL) loss. To figure out what is happening on CPB-NCs during change process, morphology, structure, and PL evolutions are systematically investigated varying influence factors illumination, moisture, oxygen, temperature. We find that yellow mainly originated from CPB crystals formed in...
Abstract In this communication, a simple postmodification method to improve the optical properties and stability of CsPbBr 3 perovskite nanocrystals (CPB‐NCs) is reported. By strictly controlling adding dose K‐oleate (molar ratio K/Cs = 1.5/1) into parent CPB‐NC solution, it possible synthesize monodispersed K‐modified CPB‐NCs (K‐CPB‐NCs) with drastically enhanced photo‐ thermostabilities as well photoluminescence quantum yields, which are increased 83% from 65%. Photostability tests show...
Buried-interface engineering is crucial to the performance of perovskite solar cells. Self-assembled monolayers and buffer layers at buried interface can optimize charge transfer reduce recombination losses. However, complex mechanisms difficulty in selecting suitable functional groups pose great challenges. Machine learning (ML) offers a powerful tool for screening identifying effective structures modification. Our ML-driven approach led preparation two promising organic molecules, PAPzO...
The thermal quenching behavior (temperature-dependent luminescence) has severely hindered the practical applications of CsPbX3 nanocrystals. Here, we find that a simple surface treatment using ammonium hexafluorosilicate (AHFS, (NH4)2SiF6) can drastically reduce CsPbBr3 nanocrystals (CPB-NCs) while enhancing their photostability. AHFS-treated sample sustains 90% its original emission intensity as temperature rises to 353 K, which is much better than (17%) pristine sample. Meanwhile,...
Metal halide perovskite nanorods hold great promise for optoelectronic applications. However, they tend to undergo phase transitions due the instability of crystal under environmental conditions, leading a rapid decline in fluorescence efficiency. Here, we report method which trioctylphosphine (TOP) directly serves as both surface ligand and solvent synthesize highly stable α-CsPbI3 (NRs). This approach produces monodisperse α-phase NRs with controlled sizes (1 μm 150 nm length, an aspect...
Abstract All‐inorganic perovskite quantum dots (PQDs) have garnered significant attention for optoelectronic applications due to their high photoluminescence yield (PLQY), narrow emission linewidths, and tunable bandgaps. However, inherent instability under environmental conditions susceptibility surface defects limit practical use. In this study, surface‐functionalized mesoporous silica nanospheres (s‐MSNs) are employed as substrates the in situ nucleation growth of CsPbBr 3 PQDs within...
Abstract Recently organic–inorganic hybrid perovskite (OIHP) has risen suddenly to become a superstar for spintronic applications. Fundamental understanding of its spin properties is great importance future advances applications in spin‐optoelectronic devices. In this work, the authors pioneer modulation Seebeck thermopower (SSTP) Pt/MAPbBr 3 /NiFe nonlocal structure via longitudinal effect measurements. They unravel effective magnon injection into film from NiFe layer, and tunability SSTP...
The performance of monochromatic perovskite light-emitting diodes (PeLEDs) has undergone rapid development in recent years, while white PeLEDs are still their infancy. tandem devices prepared by connecting units different colors with intermediate connectors comprise one the promising approaches for realizing light emission. connector plays a crucial role determining effectiveness units. In this work, all-perovskite-based LEDs assembled employing sky-blue (490 nm) and red (690 emitters as...
With the increasing application field, a higher requirement is put forward for mass spectrometer. The reduction in size will inevitably cause loss of precision; therefore, it necessary to develop high-performance miniature Based on researches rectangular ion trap, relationship between resolution and structural parameters trap array was analyzed by further simulation. results indicate that, considering balance extraction efficiency, preferable values field radius exit direction y0 slot width...
Organic-inorganic halide perovskite (OIHP) spintronics has become a promising research field, as it provides new precisely manipulable degree of freedom. Recently, by utilizing the spin Seebeck effect and inverse spin-Hall measurements, we have discovered substantial magnon injection transport in Pt/OIHP/Y
Abstract The lead bismuth eutectic (LBE) cooled fast reactor in one of the General 4 advanced reactors, which plays significant role nuclear fuel cycle. In recent years, wire-wrapped with four wires surrounds cylindrical is developed and promoted, may be accept by LBE-cooled reactor. helical cruciform Lightbridge corporation has similar geometrical features fuel. cross-section consists convex blades concave elbows, rotated around axis. blade elbow function as while they are part present...
In this paper, we focus on the efficiency of energy converting electromagnetic vibration harvester. We add a soft magnetic yoke structure so that induced voltage is increased by 81% and 65%. The simulation results in Ansoft Maxwell verify our design.
A new design of micro electrostatic actuator with low driving voltage is presented in this paper. It can reduce the operation effectively without decreasing gap between electrodes. In proposed voltage, fixed electrode was designed as a stepped structure to divide process into two steps. The peripheral and inner will be closed one by one. step pull-in processes lower actuation significantly. According current calculation, actuate
Surface defects are detrimental to the performance and stability of perovskite solar cells (PSCs). Herein, an amphiphilic molecule tert-butyl carbazate (TBC) with multiple functional groups is employed for interface passivation between Spiro-OMeTAD. We unveil synergistic mechanism a) defect-passivation Pb-related involving coordination chelation; b) immobilization components through three types hydrogen bonding interactions; c) enhanced crystallinity preferential orientation induced by...
Abstract With the development of TWT in terahertz band, size is greatly reduced and power gain also reduced. In order to improve performance traveling wave tube (TWT), an E-plane H-plane tapered folded waveguide slow structure operating at 0.34THz designed. reduce RF loss, a gradual ridge added ridge. Compared with other loaded structures, coupling impedance this has been significantly improved, it better dispersion characteristics higher maximum output power. According electromagnetic...