A5100366663- Molecular Junctions and Nanostructures
- Metal-Organic Frameworks: Synthesis and Applications
- MXene and MAX Phase Materials
- Quantum and electron transport phenomena
- Force Microscopy Techniques and Applications
- Supramolecular Self-Assembly in Materials
- Supramolecular Chemistry and Complexes
- 2D Materials and Applications
- Organic Electronics and Photovoltaics
- Graphene research and applications
- Advanced biosensing and bioanalysis techniques
- Nanowire Synthesis and Applications
- Crystallization and Solubility Studies
- Covalent Organic Framework Applications
- Asymmetric Hydrogenation and Catalysis
- Molecular Sensors and Ion Detection
- X-ray Diffraction in Crystallography
- Metal complexes synthesis and properties
- Magnetism in coordination complexes
- Electrochemical Analysis and Applications
- Electrospun Nanofibers in Biomedical Applications
- Perovskite Materials and Applications
- Advanced ceramic materials synthesis
- Asymmetric Synthesis and Catalysis
- Membrane Separation and Gas Transport
Mississippi State University
2020-2024
Jiangsu University
2024
Qingdao University of Science and Technology
2017-2024
Huazhong Agricultural University
2024
Shanghai Zhangjiang Laboratory
2024
University of Miami
2023-2024
Northwestern Polytechnical University
2024
Kunming University of Science and Technology
2022-2024
Chinese Academy of Medical Sciences & Peking Union Medical College
2023
Shaanxi Normal University
2016-2023
Free-free-beam flexural-mode micromechanical resonators utilizing nonintrusive supports to achieve measured Qs as high 8400 at VHF frequencies from 30 90 MHz are demonstrated in a polysilicon surface micromachining technology. The microresonators feature torsional-mode support springs that effectively isolate the resonator beam its anchors via quarter-wavelength impedance transformations, minimizing anchor dissipation and allowing these high-Q with stiffness frequency range. free-free-beam...
Zeolitic imidazolate frameworks ZIF-8 and ZIF-67 were prepared from stoichiometric metal ligand aqueous solutions at room temperature within 10 min. Triblock copolymer ammonium hydroxide are both essential for the formation of ZIFs. Ammonium in solution deprotonates 2-methylimidazole, PEO groups triblock surfactant electrostatically attract ions, leading to ZIF-67. The yield is more than 98%, which highest so far. This method very promising efficient environmentally friendly synthesis ZIFs...
Taking the temperature of hot carriers Hot are expected to arise in plasmonic nanostructures because nonradiative decay surface plasmons. However, identifying and determining just how “hot” these actually has been challenging. Reddy et al. devised a technique that looks at carrier transport through single molecular junction, which effectively acts as an energy filter, show it can be used determine distribution nanostructure (see Perspective by Martín-Moreno). These could harnessed enhance...
Molecular junctions offer unique opportunities for controlling charge transport on the atomic scale and studying energy conversion. For example, quantum interference effects in molecular have been proposed as an avenue highly efficient thermoelectric power conversion at room temperature. Toward this goal, we investigated effect of properties junctions. Specifically, employed oligo(phenylene ethynylene) (OPE) derivatives with a para-connected central phenyl ring (para-OPE3) meta-connected...
Abstract Nested concentric structures widely exist in nature and designed systems with circles, polygons, polyhedra, spheres sharing the same center or axis. It still remains challenging to construct discrete nested architecture at (supra)molecular level. Herein, three generations ( G2 − G4 ) of giant supramolecules, Kandinsky have been assembled molecular weight 17,964, 27,713 38,352 Da, respectively. In ligand preparation, consecutive condensation between precursors primary amines pyrylium...
Abstract A key target in molecular electronics has been molecules having switchable electrical properties. Switching between two states demonstrated using such stimuli as light, electrochemical voltage, complexation and mechanical modulation. classic example of the latter is switching 4,4′‐bipyridine, leading to conductance modulation around 1 order magnitude. Here, we describe use side‐group chemistry control properties a single‐molecule electromechanical switch, which can be cycled by...
Metal-organic frameworks (MOFs) have attracted enormous research interest as precursors/templates to prepare catalytic materials. However, the effect of structural isomerism MOFs on performance has rarely been studied. In this contribution, two topologically different Ce-benzene tricarboxylate (Ce-BTC) based same ligands and metal centers (viz., "MOF isomers") are prepared used porous supports load Pt nanoparticles (NPs), which shows distinct differences in porosities loading behaviors Pt....
Parastichy, the spiral arrangement of plant organs, is an example long-range apparent order seen in biological systems. These ordered arrangements provide scientists with both aesthetic challenge and a mathematical inspiration. Synthetic efforts to replicate regularity parastichy may allow for molecular-scale control over particle processes. Here we report packing supramolecular truncated cuboctahedron (TCO) into double-helical (DH) nanowires on graphite surface non-natural pattern ascribed...
A family of $M{A}_{2}{Z}_{4}$ materials has recently inspired great interest due to its exotic geometry and intriguing electronic properties. Here we investigate the transport photoelectric properties ${\mathrm{Mo}\mathrm{Si}}_{2}{\mathrm{P}}_{4}$ monolayer (MSP ML) that a small direct gap using first-principles calculations. We design several model nanodevices based on MSP ML, including p-n junction diodes, p-i-n field-effect transistors, transistors. demonstrate these MSP-ML-based yield...
The synergistic effect of Ce 3+ doping in crystal framework and CeO 2 surface coating was achieved simultaneously, which greatly improved the electronic conductivity, facilitated ion diffusion transfer stabilized crystalline structure.
L-edge X-ray absorption spectroscopy has been used to study, under a variety of conditions, the electronic structure Ni in Ni−Fe hydrogenases from Desulfovibrio gigas, baculatus, and Pyrococcus furiosus. The status enzyme films for these measurements was monitored by FT-IR spectroscopy. spectra were interpreted ligand field multiplet simulations comparison with data model complexes. spectrum D. gigas "form A" is consistent covalent Ni(III) species. In contrast, all reduced samples exhibited...
We report on a theoretical analysis and experimental verification of mechanism for photoconductance, the change in conductance upon illumination, symmetric single-molecule junctions. demonstrate that photoconductance at resonant illumination arises due to Coulomb interaction between electrons holes molecular bridge, so-called exciton-binding. Using scanning tunneling microscopy break junction technique, we measure histograms perylene tetracarboxylic diimide (PTCDI) molecules attached...