A5066704146- Semiconductor materials and interfaces
- Perovskite Materials and Applications
- Catalytic Processes in Materials Science
- Quantum Dots Synthesis And Properties
- Fluorine in Organic Chemistry
- Nanomaterials for catalytic reactions
- Pancreatic function and diabetes
- Electrocatalysts for Energy Conversion
- Carbohydrate Chemistry and Synthesis
- Glycosylation and Glycoproteins Research
- Advanced Photocatalysis Techniques
- Catalysis and Oxidation Reactions
- Parkinson's Disease Mechanisms and Treatments
- Nanocluster Synthesis and Applications
- Silicon and Solar Cell Technologies
- Aluminum Alloys Composites Properties
- Copper Interconnects and Reliability
- Solid-state spectroscopy and crystallography
- Diabetes Management and Research
- Copper-based nanomaterials and applications
- Intermetallics and Advanced Alloy Properties
- Optical properties and cooling technologies in crystalline materials
- Silicon Nanostructures and Photoluminescence
- Advanced Nanomaterials in Catalysis
- Sulfur-Based Synthesis Techniques
Chinese Academy of Sciences
2016-2025
Tianjin University of Sport
2023-2025
Shenzhen Institutes of Advanced Technology
2022-2025
Dalian Institute of Chemical Physics
2017-2024
Guiyang Medical University
2024
University of Chinese Academy of Sciences
2017-2023
Dalian National Laboratory for Clean Energy
2020-2023
Shanghai University
2010-2022
Wannan Medical College
2021-2022
Hefei University of Technology
2022
Lead-based perovskite nanocrystals (NCs) have outstanding optical properties and cheap synthesis conferring them a tremendous potential in the field of optoelectronic devices. However, two critical problems are still unresolved hindering their commercial applications: one is fact being lead-based other poor stability. Lead-free all-inorganic Cs3 Bi2 X9 (X=Cl, Br, I) NCs synthesized with emission wavelength ranging from 400 to 560 nm by facile room temperature reaction. The ligand-free Br9...
Lead-free double-perovskite nanocrystals (NCs), that is, Cs2AgIn xBi1- xCl6 ( x = 0, 0.25, 0.5, 0.75, and 0.9), can be tuned from indirect band gap 0.5) to direct 0.75 0.9) are designed. Direct NCs exhibit 3 times greater absorption cross section, lower sub-band trap states, >5 photoluminescence quantum efficiency (PLQE) compared those observed for (Cs2AgBiCl6). A PLQE of 36.6% is comparable lead perovskite in the violet region. Besides edge emission, bright orange (570 nm) emission. Density...
Lead-free perovskite nanocrystals (NCs) were obtained mainly by substituting a Pb2+ cation with divalent or three cations two trivalent cations. The substitution of one monovalent Ag+ and Bi3+ was used to synthesize Cs2 AgBiX6 (X=Cl, Br, I) double NCs. Using femtosecond transient absorption spectroscopy, the charge carrier relaxation mechanism elucidated in AgBiBr6 NCs exhibit ultrafast hot-carrier cooling (<1 ps), which competes trapping processes (mainly originate from surface defects)....
A series of lead-free double perovskite nanocrystals (NCs) Cs2 AgSb1-y Biy X6 (X: Br, Cl; 0≤y≤1) is synthesized. In particular, the AgSbBr6 NCs a new material that has not been reported for bulk form. Mixed Ag-Sb/Bi exhibit enhanced stability in colloidal solution compared to Ag-Bi or Ag-Sb NCs. Femtosecond transient absorption studies indicate presence two prominent fast trapping processes charge-carrier relaxation. The are dominated by intrinsic self-trapping (ca. 1-2 ps) arising from...
Abstract Lead‐free perovskite nanocrystals (NCs) were obtained mainly by substituting a Pb 2+ cation with divalent or three cations two trivalent cations. The substitution of one monovalent Ag + and Bi 3+ was used to synthesize Cs 2 AgBiX 6 (X=Cl, Br, I) double NCs. Using femtosecond transient absorption spectroscopy, the charge carrier relaxation mechanism elucidated in AgBiBr NCs exhibit ultrafast hot‐carrier cooling (<1 ps), which competes trapping processes (mainly originate from...
Abstract Supported gold (Au) nanocatalysts have attracted extensive interests in the past decades because of their unique catalytic properties for a number key chemical reactions, especially (selective) oxidations. The activation O 2 on Au is crucial and remains challenge only small nanoparticles (NPs) can effectively activate . This severely limits practical application NPs inevitably sinter into larger ones during reaction due to low Taman temperature. Here we construct Au-SiO interface by...
Abstract Lead‐based perovskite nanocrystals (NCs) have outstanding optical properties and cheap synthesis conferring them a tremendous potential in the field of optoelectronic devices. However, two critical problems are still unresolved hindering their commercial applications: one is fact being lead‐based other poor stability. Lead‐free all‐inorganic Cs 3 Bi 2 X 9 (X=Cl, Br, I) NCs synthesized with emission wavelength ranging from 400 to 560 nm by facile room temperature reaction. The...
Lead-free halide double perovskites (DPs) have attracted great attention due to their stability, nontoxicity and good photophysical property. In this work, we report a new, small-bandgap Cs2CuSbCl6 DP nanocrystals (NCs) with bandgap of 1.66 eV, which is the smallest in reported lead-free three-dimensional NCs. Density functional theory calculations confirm that has an indirect 1.70 agreement experimental result. The property NCs studied by combination femtosecond transient absorption (TA)...
Growing evidence suggests that neurovascular dysfunction characterized by blood-brain barrier (BBB) breakdown underlies the development of psychiatric disorders, such as major depressive disorder (MDD). Tight junction (TJ) proteins are critical modulators homeostasis and BBB integrity. TJ protein Claudin-5 is most dominant component downregulated in numerous depression models; however, underlying mechanisms remain elusive. Here, we demonstrate a molecular basis links stress depression. We...
The catalytic performance of the atomically precise gold cluster-Au38 (PET)24 (PET=2-phenylethanethiolate), immobilized on activated carbon (AC), was investigated for aerobic oxidation glucose to gluconic acid. Au38 /AC-120 catalysts, annealed at 120 °C in air, exhibited high activity and significantly better than corresponding catalysts /AC-150 /AC-300 (treated 150 300 remove protecting thiolate ligands). robust Au cluster a result partial ligand removal, providing catalytically active...
Abstract A series of lead‐free double perovskite nanocrystals (NCs) Cs 2 AgSb 1− y Bi X 6 (X: Br, Cl; 0≤ ≤1) is synthesized. In particular, the AgSbBr NCs a new material that has not been reported for bulk form. Mixed Ag–Sb/Bi exhibit enhanced stability in colloidal solution compared to Ag–Bi or Ag–Sb NCs. Femtosecond transient absorption studies indicate presence two prominent fast trapping processes charge‐carrier relaxation. The are dominated by intrinsic self‐trapping (ca. 1–2 ps)...
We have demonstrated a novel strategy of synthesizing noble metal alloy mesocages via Cu2O template route. The efficiency the current route in producing with various shapes (i.e., cube, octahedron, "star") was evaluated diverse systems Pt, Pd, as well Pt/Pd. approach offered facile and effective protocol for synthesis hollow (even nanocages).
Size-dependence is an important factor in gold nanocatalysis.
Carrier multiplication (CM) is an effective mechanism that makes it possible to use hot carriers (HCs) bypass the Shockley–Queisser limit for solar-cell efficiency. In this paper, we present a detailed study of both CM and HC cooling dynamics in quantum-confined CsPbI3 perovskite nanocrystals (NCs), using femtosecond transient absorption spectroscopy. Our results show barrierless CM, with efficiency exceeding 90%, can be achieved strongly confined NCs on time scale ≪200 fs. A low (∼40%),...
<title>Abstract</title> Yohimbine, a potent alpha2A-adrenergic receptor (α2AAR) antagonist, was found to carry therapeutic potential for type 2 diabetes through improving insulin release. However, adverse side effects mediated by its actions in the brain hampered use. Here, we have developed novel peripherally acting α2AAR CDS479-2, based on molecular docking analysis and modification of yohimbine's structure. The inactive-state structures α2AAR, either bound yohimbine, or were elucidated...
Emerging evidence suggests that chronic stress compromises blood‒brain barrier (BBB) integrity by disrupting brain microvascular endothelial cells (BMECs), contributing to the development of cognitive impairments. Thus, targeting BBB is expected be a promising treatment strategy. The biological function rutin has been investigated in neurological disorders; however, its regulatory role stress-induced damage and decline underlying mechanisms remain elusive. In unpredictable mild (CUMS) mouse...
Ultrathin Pt-based PtM (M = Pd, Ru, Au, Fe) alloy nanowire networks could be facilely synthesized using a soft template formed by cetyltrimethylammonium bromide in two-phase water−chloroform system. The as-synthesized alloyed nanowires show the fcc crystal phase. They have an average diameter of ∼2.3 nm and form porous nanonetworks, which can potentially used for number catalytic applications. It was found that PtRu nanonetworks showed more efficient activity hydrogenation azo bonds methyl...