A5100339400- Luminescence Properties of Advanced Materials
- Catalytic C–H Functionalization Methods
- Perovskite Materials and Applications
- Catalytic Cross-Coupling Reactions
- Inorganic Fluorides and Related Compounds
- Oxidative Organic Chemistry Reactions
- Asymmetric Hydrogenation and Catalysis
- Ammonia Synthesis and Nitrogen Reduction
- Ferroelectric and Piezoelectric Materials
- Synthesis and properties of polymers
- Ga2O3 and related materials
- Quantum Dots Synthesis And Properties
- Advanced Photocatalysis Techniques
- Luminescence and Fluorescent Materials
- Solid-state spectroscopy and crystallography
- Lanthanide and Transition Metal Complexes
- Inorganic Chemistry and Materials
- Microwave Dielectric Ceramics Synthesis
- Solid State Laser Technologies
- Synthesis and Catalytic Reactions
- Microstructure and mechanical properties
- Crystal Structures and Properties
- Silicon Nanostructures and Photoluminescence
- Advanced Semiconductor Detectors and Materials
- Nanowire Synthesis and Applications
Yunnan University
2020-2025
Soochow University
2010-2021
Institute of Disaster Prevention
2021
Jiangxi University of Traditional Chinese Medicine
2021
Minzu University of China
2020
Kunming University
2020
Suzhou Research Institute
2019
China University of Geosciences
2018
Wuhan University of Technology
2018
Lanzhou University
2011
The crème de la crème! A practical and simple Bu4NI-catalyzed CO bond formation was achieved by using a cross-dehydrogenative coupling (CDC) reaction with tert-butyl hydroperoxide (TBHP) as the ultimate oxidant (see scheme; R1=aryl, heteroaryl, alkyl; R2, R3=alkyl, alkyl halide). This approach is most straightforward method to date for synthesis of α-acyloxy ethers. plausible mechanism has been proposed. Detailed facts importance specialist readers are published "Supporting Information"....
Abstract Phosphors emitting visible and near-infrared persistent luminescence have been explored extensively owing to their unusual properties commercial interest in applications such as glow-in-the-dark paints, optical information storage, vivo bioimaging. However, no phosphor that features emissions the ultraviolet C range (200–280 nm) has known exist so far. Here, we demonstrate a strategy for creating new generation of exhibits strong emission with an initial power density over 10...
The catalytic oxidation of alkenes to α-diketones is unprecedented. A new alkenes, catalyzed by a ruthenium complex, which allows an efficient route using TBHP as oxidant described. This methodology highly functional group tolerant, practically convenient, requires no additional ligand, and operates under mild conditions with short reaction times. Based upon experimental observations, plausible mechanism proposed.
Our results greatly deepen the understanding of structural and photophysical properties lanthanide-doped lead halide perovskite NCs.
Abstract Long persistent phosphors (LPPs) have drawn tremendous research interest owing to their mysterious optical phenomena and widespread applications. LPPs in the ultraviolet‐C (UVC, 200–280 nm) spectral range particularly hold promise terms of sterilization, drug release, cancer therapy. However, all reported UVC so far relied on use Pr 3+ as emitter, resulting a limited scope such phosphors. Here, new concept for designing is proposed, leading birth first non‐rare‐earth phosphor (YPO 4...
Abstract Eu 3+ doped phosphors with efficient and intense 5 D 0 ‐ 7 F 4 far‐red luminescence hold significant potential in daily agricultural illuminations. However, ions typically emit orange/red from 1,2 transitions, the development of high‐quality is still lacking challenging. Herein, two potassium‐bismuth‐phosphate are developed to manipulate coordination geometry octahedron distorted square antiprism, achieving emission a high quantum efficiency 90.5%. Specifically, formation energy...
Abstract Far‐red phosphors have emerged as a desirable research hotspot owing to their critical role in promoting plant growth. Especially, Eu 3+ ions typically present the 5 D 0 → 7 F J (J = 0, 1, 2, 3, 4) transitions, which overlap with far‐red light required for photosynthesis. However, achieving high‐efficiency emission of remains challenging due weak 4 transition and concentration quenching. The study constructs two anomalously efficient garnet A 3 Sc 2 C O 12 (A Y , Gd . Al Ga ):Eu...
A Ru-catalyzed oxidative coupling of arenes with boronic acids using molecular oxygen via direct C-H activation is reported. Both the scope and mechanism process are discussed.
Abstract Long persistent phosphors (LPPs) have attracted enduring attention owing to their wide applications. However, the discovery of LPPs is thus far largely results trial and error. Here, theory‐guided defect tuning through topochemical reactions demonstrated for accelerated emerging LPPs. First‐principles calculations are employed identify thermodynamic charge‐transition levels different states, which help examine whether candidate structure a suitable host afterglow. Rationally species...
Red-emitting phosphor Na<sub>3</sub>Li<sub>3</sub>Sc<sub>2</sub>F<sub>12</sub>:Mn<sup>4+</sup>with the high<sup>2</sup>E<sub>g</sub>level energy shows intensive red emission accompanied with high external quantum efficiency and thermal-quenching resistance for warm white LEDs.
abstract The intelligent home system finished the wireless or remote control for all indoor electric devices through terminals. description about integrated network architecture and interconnecting mechanisms reliable measurement of parameters by smart sensors transmission data via internet is being presented. communication technology includes WiFi, Zigbee mobile communications. presented design hardware part software part. forward are fixed in variety appliances based on CC2530 chip...
The luminescence of dielectric phase transition materials is one important property for technological applications, such as low-energy electron excitation. combination transitions and within organic-inorganic hybrids would lead to a new type luminescent multifunctional material. Here, we report two novel A2BX4 hybrid complexes [Me3NVinyl]2[MnCl4] 1 [Me3NVinyl]2[MnBr4] 2, ([Me3NVinyl] = trimethylvinyl ammonium cation). 2 were found undergo continuous reversible well switch transitions....
Abstract Aurivillius phases have been routinely known as excellent ferroelectrics and rarely deemed materials that luminesce in the near‐infrared (NIR) region. Herein, it is shown can demonstrate broadband NIR luminescence covers telecommunication biological optical windows. Experimental characterization of model system Bi 2.14 Sr 0.75 Ta 2 O 9− x , combined with theoretical calculations, help to establish originates from defective [Bi ] 2+ layers. Importantly, generality this finding...
CdS QDs (quantum dots) were precipitated in the Pr 3+ -doped silicate glass by melting-quenching method. The crystallization behavior and luminescent property of analyzed XRD, Raman, TEM, UV–Vis–NIR scanning spectrophotometer fluorescence spectra. It was found that with increase heat-treatment temperature, size particles increased from 2.30[Formula: see text]nm to 3.63[Formula: text]nm, while red-shift observed absorption spectra excited at 370[Formula: text]nm. Fluorescence measurements...
Abstract Engineering oxygen coordination environments of cations in oxides has received intense interest thanks to the opportunities for discovery novel with unusual properties. Herein, synthesis stoichiometric layered BaBiO 2.5 by a nontopotactic phase transformation perovskite 3 is presented. By analyzing synchrotron X‐ray diffraction data maximum‐entropy method/Rietveld technique, it was found that Bi involved an chemical bonding situation four atoms featuring one ionic bond and three...
Abstract The ligand‐free procedure tolerates a broad spectrum of functionalities and can be applied to trans‐ cis‐alkenes in an equal manner.
Abstract Title reaction proceeds in the absence of transition metal catalysts, is operationally simple and tolerates a wide variety functional groups like cyano, amide, aromatic halide, ether, ketone C—C double bonds.