A5101641265- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Luminescence Properties of Advanced Materials
- Solid-state spectroscopy and crystallography
- Metal-Organic Frameworks: Synthesis and Applications
- Inorganic Chemistry and Materials
- ZnO doping and properties
- Chalcogenide Semiconductor Thin Films
- Magnetism in coordination complexes
- Nanocluster Synthesis and Applications
- Evaluation and Optimization Models
- Polyoxometalates: Synthesis and Applications
- Gas Sensing Nanomaterials and Sensors
- Ga2O3 and related materials
- Indoor and Outdoor Localization Technologies
- Crystal Structures and Properties
- Protein Hydrolysis and Bioactive Peptides
- Environmental and Agricultural Sciences
- Optical properties and cooling technologies in crystalline materials
- Radiation Detection and Scintillator Technologies
- Lanthanide and Transition Metal Complexes
- 2D Materials and Applications
- Organic Light-Emitting Diodes Research
- Chemical Analysis and Environmental Impact
- Data Stream Mining Techniques
Yangzhou University
2013-2024
Jilin University
2024
China Three Gorges University
2024
China University of Petroleum, East China
2024
Nanjing University of Information Science and Technology
2024
Oil Crops Research Institute
2023
Chinese Academy of Agricultural Sciences
2023
Shanghai Tunnel Engineering Rail Transit Design & Research Institute
2023
Shanghai Polytechnic University
2022
Nanjing University of Science and Technology
2018-2021
Recently, the pursuit of high photoluminescence quantum yields (PLQYs) for blue emission in perovskite nanocrystals (NCs) has attracted increased attention because QY NCs lags behind those green and red ones severely, which is fatal three-primary-color displays. Here, we propose an situ PbBr64– octahedra passivation strategy to achieve a 96% absolute ultrapure (line width = 12 nm) from CsPbBr3 nanoplatelets (NPLs), both values rank first among with emission. From aspect constructing intact...
The stability and optoelectronic device performance of perovskite quantum dots (Pe-QDs) are severely limited by present ligand strategies since these ligands exhibit a highly dynamic binding state, resulting in serious complications QD purification storage. Here, "Br-equivalent" strategy is developed which the proposed strong ionic sulfonate heads, for example, benzenesulfonic acid, can firmly bind to exposed Pb ions form steady also effectively eliminate exciton trapping probability due...
Abstract The challenges of developing neuromorphic vision systems inspired by the human eye come not only from how to recreate flexibility, sophistication, and adaptability animal systems, but also do so with computational efficiency elegance. Similar biological these circuits integrate functions image sensing, memory processing into device, process continuous analog brightness signal in real-time. High-integration, flexibility ultra-sensitivity are essential for practical artificial that...
Abstract All inorganic halide perovskite (IHP) nanocrystals (NCs) have emerged as a new class of optoelectronic materials for various applications. Surface ligands surface passivators are essential components nucleation and growth processes, photoluminescence quantum yields (PL QY), stability, photoelectric In this review, the relationship structure modified is outlined by ligand some properties on account ion features. This review specifically focuses roles in construction IHP NCs with...
Abstract Understanding the subtle structure–property relationships of quantum dots (QDs) is essential for targeted modulation optoelectronic properties, and influences surface defects inorganic halide perovskite (HP) QDs are still not very clear. Here, negative exciton trapping effects vacancies ( V X ) on photoluminescence yield QY (PLQY) HPQDs determined by a detailed analysis optical parameters, dynamics, chemical states. Based fact that contribute greatly to nonradiative recombination...
Abstract Fluorescent type nuclear battery consisting of scintillator and photovoltaic device enables semipermanent power source for devices working under harsh circumstances without instant energy supply. In spite the progress structure design, development scintillators is far behind. Here, a Cs 3 Cu 2 I 5 : Mn showing high light yield ~67000 ph MeV −1 at 564 nm presented. Doping intrinsic features endow with robust thermal stability irradiation hardness that 71% or >95% initial...
Abstract All‐inorganic halide perovskite is considered as outstanding candidate of organic–inorganic hybrid due to its superior stability. However, the low solubility precursor and uncontrollable film growth result in poor quality impede application polycrystalline films greatly. In this work it reported on a space‐confined strategy overcome fast crystal disadvantages via freezing solution within gaps ordered polystyrene sphere templates. Then, dense CsPbBr 3 realize trap density (3.07 × 10...
Abstract Recently, halide perovskites represent potential materials in X‐ray detection via both direct and indirect ways. Generally, thick active are necessary to completely absorb photons while inefficient carrier collection leads low device sensitivity. Besides, though perovskite nanocrystal (NC) scintillators can be used with silicon detectors, they suffer from strong reabsorption problem the responsivity of detectors is usually low. Herein, an effective strategy based on all‐perovskite...
The optimal operation of integrated energy systems is affected by the network structure and source configuration in planning process. With rapid developments renewable energies, size location sources under uncertainty conditions should be considered planning. A robust optimization based coordinated method proposed this paper. model determining both locations sizes simultaneously established. For newly increased power loads, constraint gas supply necessities for new loads added model....
Abstract Structure reorganization within perovskite materials has attracted much attention due to its assisted appealing features in optoelectronic devices, such as achieving continue‐wave laser and performance enhancement photovoltaic devices. Unfortunately, the difficulty of controlling processing unclear underlying mechanisms impose an impediment for taking advantage structural pursuit distinctive functions perovskite‐based In this work, using above‐bandgap illumination with a small...
Choosing (3-aminopropyl) triethoxysilane as the surface ligand of PQDs and controlling hydrolysis rate silane together determined formation single CsPbBr<sub>3</sub>@SiO<sub>2</sub> core–shell particles with greatly improved stability.
The single component (SC) white-light emitting (WLE) metal-organic frameworks based on europium (Eu-MOFs), which could be applied in lighting and display, have drawn great attention but rarely been exploited. In this work, we dedicated to design synthesize SC-WLE Eu-MOFs via a dichromatic strategy the balance of simultaneous ligand-based Eu-based emissions. Eu-MOF {[Eu4(obb)6(H2O)9]·(H2O)}∞ (IAM16–3) generated self-assembly flexible ligand 4,4′-oxybisbenzoic acid (H2obb) ions displays...
The well-designed planar micro-supercapacitors can be manufactured through a variety of techniques for the applications in flexible electronics, biosensors, power grids and integrated chips.
In this paper, we present a WiFi-based intrusion detection system called Wi-Alarm. Motivated by our observations and analysis that raw channel state information (CSI) of WiFi is sensitive enough to monitor human motion, Wi-Alarm omits data preprocessing. The mean variance the amplitudes CSI are used for feature extraction. Then, support vector machine (SVM) algorithm applied determine results. We prototype on commercial devices evaluate it in typical indoor scenario. Results show reduces...
Surface passivation ligands play a central role in optimizing binding interactions and inter-NC spacing promoting the effective assembly of NC clusters hierarchical superstructures. Here, we report ligand-assisted strategy that depends on quaternary ammonium salts L-type as an driving force to optimize between QDs, thus contributing substantially formation ordered CsPbBr3 nanoscale supercrystals (nano-SCs). Studies structure characterization small-angle X-ray scattering reveal that,...
Metal co-doped cesium manganese halide nanocrystals are synthesized to enhance the red emission depending on transitional role of Tm 3+ ions, and realize tunable from 660 nm 628 by controlling Pb doping contents.
Thiol–amine solvent mixtures have been widely applied in the solution processing of binary chalcogenide thin films due to their excellent ability dissolve various bulk chalcogenides. However, application this system preparing new crystalline chalcogenidometalates has not explored. In work, by using a thiol–amine mixture n-butylamine (BA) and 1,2-ethanedithiol (EDT) as reaction medium protonated piperazine (pip) cation template, we synthesized series chalcogenidoarsenates with structures...
The structural transformation from symmetric cumulene to broken-symmetry polyyne within a one-dimensional (1-D) atomic carbon chain is signature of Peierls distortion. Direct observation such with single-bond resolution is, however, still challenging. Herein, we design molecule moiety (Br2C═C═C═CBr2) and employ STM tip manipulation achieve the molecular skeleton rearrangement diyne (Br–C≡C–C≡C–Br). Furthermore, by an on-surface reaction strategy, thermally induced entire debromination...
An armor-like passivation strategy is developed to improve luminous efficiency, storage stability, water resistance and irradiation stability of PQDs. Moreover, PQDs as the transducer component are used in radioluminescent nuclear battery.
The extension application of perovskites in aqueous media such as bioassays requires the development a water-stable perovskite with simple preparation process and low cost. However, degradation solution is still thorny problem. Here, we develop methylimidazole-assisted two-step synthesis protocol to prepare CsPbBr3@PbBrOH nanorods superior water stability remarkable optical properties at room temperature. synergy 2-methylimidazole (2-MIM), an N-donor ligand, can not only facilitate CsPbBr3...
A heavy atom (Hf)-doped Cs 2 ZrCl 6 scintillator with strong blue emission, large Stokes shift, and smaller Δ E (S 1 –T ) shows a higher light yield, low detection limit, spatial resolution, as well good irradiation stability.