A5085040368- Gold and Silver Nanoparticles Synthesis and Applications
- Multiferroics and related materials
- Magnetic and transport properties of perovskites and related materials
- Quantum Dots Synthesis And Properties
- Ferroelectric and Piezoelectric Materials
- TiO2 Photocatalysis and Solar Cells
- Copper-based nanomaterials and applications
- Gas Sensing Nanomaterials and Sensors
- Transition Metal Oxide Nanomaterials
- Advanced biosensing and bioanalysis techniques
- ZnO doping and properties
- Advanced Condensed Matter Physics
- Nanomaterials for catalytic reactions
- Chalcogenide Semiconductor Thin Films
- Catalytic Processes in Materials Science
- Advanced optical system design
- Nanocluster Synthesis and Applications
- Anodic Oxide Films and Nanostructures
- Heusler alloys: electronic and magnetic properties
- Molecular Junctions and Nanostructures
- Dielectric properties of ceramics
- Metamaterials and Metasurfaces Applications
- Orbital Angular Momentum in Optics
- Metal Extraction and Bioleaching
- Magnetic properties of thin films
Nantong University
2010-2024
National University of Defense Technology
2015
Southeast University
1997-2000
The lateral shifts (i.e., the spatial GH shifts) of reflected wave from a uniaxial anisotropic chiral metamaterial slab are predicted based on stationary-phase method. two cases investigated in detail. It is found that negative can be realized for both as group refraction left circularly polarized (LCP) negative. perpendicular component (Δsp) similar cases, which enhanced at close-to-grazing incidence. However, parallel (Δpp) near Brewster angle. For case (I), by introducing different...
Based on density functional theory, we elucidate the origin of ferroelectricity multiferroic CuFeO2 with collinear and noncollinear magnetic structure calculations. By comparing lattice geometry electronic structures different orderings, confirm that up-up-down-down spin arrangement plays an important role in formation band gap, decrease total energy, increase moment. However, system undergoes a large distortion due to helical-spin ordering. In particular, strong hybridizations Fe 3d O 2p...
In the framework of Landau–Devonshire thermodynamic theory, which is used in conventional ferroelectrics, we investigate ferroelectric properties 1–3 type multiferroic BaTiO3–CoFe2O4 nanocomposite films. The films are epitaxial both plane and out with self-assembled hexagonal arrays CoFe2O4 nanopillars embedded a BaTiO3 matrix present tantalizing possibility heteroepitaxy three dimensions. It shown that thin such as polarization, piezoelectric coefficient, dielectric susceptibility, etc.,...
A new all-solid-state electrochromic device (SED) employing prussian blue and WO 3 particulate film with poly (vinyl chloride) (PVC) gel electrolyte has been fabricated. reversible color change between colorless was observed when an appropriate potential applied repeatedly to the SED. When cycled more than 1000 times, less 2% of characteristics were lost.
Using a general Landau free-energy thermodynamic theory for ferroelectric (FE) and ferromagnetic (FM) phases, we investigate the magnetoelectric coupling effect on epitaxial 1–3 type multiferroic nanocomposite thin films. By taking into account electrostrictive magnetostrictive effects elastic stress arising from FE/FM film/substrate interfaces, renormalize dielectric magnetic coefficients twice obtain quasi-intrinsic in function of this system. Then, electrical-field-induced magnetization...
The crystal structure, tetragonal distortion, magnetism, electronic structure and pressure response of Mn 2 NiAl are calculated by first-principles method based on the density functional theory.The calculations show, equilibrium in cubic austenitic phase is MnMnNiAl with atoms occupy A B sites two inequivalent positions.In process transform from a to alloys exhibit stable martensitic near c/a = 1.24.In both austenite martensite phases, main contributors magnetism NiAl, show ferrimagnetism...
Novel nanocomposite with Fe3O4 core and Ag/Au bimetallic shell were fabricated by galvanic replacement reaction. The Fe3O4 core has good magnetism shows characteristic surface plasmon resonance peaks of Ag Au, as indicated UV-visible absorption spectra. Surface-enhanced Raman scattering investigation reveals Fe3O4/Ag, Au presents much stronger surface-enhanced enhancement than Fe3O4/Ag, which is ascribed to the formation holes during
The nanocrystalline TiO2 film is modified simultaneously with porphyrin dye molecules and phthalocyanine by chemical adsorption. Since have different absorption character in the visible range, electrode sensitized a combination of not only obtains better spectral match to solar spectrum, but also photoresponse extended cover most range. This kind exhibits significant improvement energy conversion efficiency.
Quantum-sized cadmium sulfide (CdS) particles have been deposited onto the surface of a microporous titanium dioxide (TiO 2 ) electrode by chemical growth method, followed modification with gallium tetrasulfophthalocyanine (GaTSPc) molecules to prepare co-modified TiO electrode. Low bandgap semiconductor CdS and GaTSPc different spectral ranges in visible range. The effectively absorbed light. Experimental results showed that sensitization extended optical absorption spectrum photocurrent...
We demonstrate the effective self-assembly of Au nanoparticles array by porous anodic alumina templates. It is interesting that ‘triangular island’ nanostructure appears on surface template. Every arises in adjacent area among three close holes. Using vacuum deposition and thermal dewetting, ordered hexagonal fabricated alumina. During optical characterisation, absorption peaks are red shifted as incidence angle increases. Also, Raman scattering spectra intensity a hundred times larger than...
Metal-cladding slab waveguide with millimeter scale thick guiding layer is applied to enhance Raman spectra of Copper phthalocyanine experimentally. Different from the usual strategy create "hot spots" by designing sophisticated nanostructures more and narrow slits, we inclined increase distance between two metallic cladding layers, i.e., thickness. Despite risk reducing field intensity guided modes, advantages are also obvious. First, high mode density facilitates coupling incident energy...