17 Result(s)
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Article
Young Soo Kang
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Article
Synthesis of Indium Tin Oxide Nanoparticles and Application to Near IR-reflective Film
ITO nanoparticles were synthesized by coprecipitation method in an aqueous solution and thermal method in an alcohol solution. The coprecipitate prepared at room temperature showed the crystal structure of ind...
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Article
Synthesis and Characterization of Nickel-Doped ZnO Nanocrystals
The structure and magnetism of ZnO-based solid solutions, dilute magnetic semiconductors, with nickel solute were obtained via a solvothermal method. Compared with previous methods for solid solution DMSs, our...
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Preparation and Characterization Silver and Copper Layers on Polyimide Prepared by Electroless Copper Plating
Ag particles were generated on Ag+-doped polyimide film by ion exchanging, followed by copper deposition using metallic silver particles as seeds. The Cu layers were coated on the surface of polyimide films by el...
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Characterization of Pyrazoline Organic Nanoparticles Encapsulated with Poly(Methyl Methacrylate-co-Ethylene Glycol Dimethacrylate) for Color Electronic Paper
1-Phenyl-3-naphthyl-5-((dimethylamino)phenyl)-2-pyrazoline with different diameters of 40 - 190 nm were prepared by the reprecipitation method and polymerized with poly(methyl methacrylate-co-ethylene glycol d...
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Fabrication of Polymeric Capsules Enclosing Eletrophoretic Particle Dispersion
Poly(urea-formaldehyde) capsules enclosing electrophoretic particle dispersion were formed by carrying out an in-situ polymerization reaction in an oil-in-water emulsion. The internal dispersion was composed o...
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Monte Carlo simulation of the molecular properties of poly(vinyl chloride) and poly(vinyl alcohol) melts
NPT Monte Carlo simulations were performed to calculate the molecular properties of syndiotactic poly(vinyl chloride) (PVC) and syndiotactic poly(vinyl alcohol) (PVA) melts using the configurational bias Monte...
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Article
Dielectric and magnetoelectric properties of (Ni,Cu)Fe2O4 + [(Ba,Pb)(Ti,Zr)]O3 composites
The observation of magnetoelectric coupling is reported in (x) Ni0.8Cu0.2Fe2O4 + (1 − x) Ba0.5Pb0.5Ti0.5Zr0.5O3 composites synthesized by normal solid state reaction method. The phase formation was confirmed by X...
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Article
Phase transfer of Au nanoparticles using one chemical inducer: DDAB
Au nanoparticles in aqueous medium were transferred to organic solution via a remarkably simple one-step route under the effect of phase transfer inducer dimethyldioctadecylammonium bromide (DDAB). The feature...
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Electron Spin Resonance Study on the Photoinduced Electron Transfer in Chlorophyll a in Reconstituted Lipid Bilayer Vesicles
The photoinduced electron transfer from chlorophyll a through the interface of positively charged dioctadecyltrimethylammonium chloride (DODAC), neutral dipalmitoylphosphatidylcholine (DPPC) and negatively cha...
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Open AccessFabrication of Fe3O4@mSiO2 Core-Shell Composite Nanoparticles for Drug Delivery Applications
We report the synthesis of Fe3O4@mSiO2 nanostructures of different meso-silica (mSiO2) shell thickness, their biocompatibility and behaviors for loading and release of a model drug ibuprofen. The composite nanost...
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Open AccessDual-Function Au@Y2O3:Eu3+ Smart Film for Enhanced Power Conversion Efficiency and Long-Term Stability of Perovskite Solar Cells
In the present study, a dual-functional smart film combining the effects of wavelength conversion and amplification of the converted wave by the localized surface plasmon resonance has been investigated for a ...
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Article
Efficient Approaches on Photochemical CO2 Reduction to Alcohol by Solar Light with Functional Multi-layered Membrane Catalysts
Simple and efficient approach for artificial photosynthesis of CO2 reduction into ethanol with flexible functional multi-layered membrane catalysts is suggested. The g-C3N4 and BiVO4 particle were synthesized by ...
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Open AccessDetermination of Dy substitution site in Nd2−xDyxFe14B by HAADF-STEM and illustration of magnetic anisotropy of “g” and “f” sites, before and after substitution
Nd2Fe14B and Nd2−xDyxFe14B (x = 0.25, 0.50) particles were prepared by the modified co-precipitation followed by reduction–diffusion process. Bright field scanning transmission electron microscope (BF-STEM) image...
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Open AccessEnhancement of anisotropy energy of SmCo5 by ceasing the coupling at 2c sites in the crystal lattice with Cu substitution
SmCo5 and SmCo5−xCux magnetic particles were produced by co-precipitation followed by reduction diffusion. HRTEM confirmed the Cu substitution in the SmCo5 lattice. Non-magnetic Cu was substituted at “2c” site in...
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Open AccessNovel eco-friendly low cost and energy efficient synthesis of (Nd–Pr–Dy)2Fe14B magnetic powder from monazite concentrate
Syntheses of Nd2Fe14B magnetic powder by conventional method is a complicated multi-step process, which produces harmful pollutants and consumes a huge amount of energy and resources. Herein we report a simple ch...
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Open AccessFour-step eco-friendly energy efficient recycling of contaminated Nd2Fe14B sludge and coercivity enhancement by reducing oxygen content
Complete recycling of Nd2Fe14B sludge by chemical methods has gained significance in recent years, however, it is not easy to recycle highly contaminant sludge and obtain product with good magnetic properties. He...
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Open AccessDefectronics based photoelectrochemical properties of Cu2+ ion doped hematite thin film
The concentration of guest elements (dopants) into host materials play an important role in changing their intrinsic electrical and optical properties. The existence of hetero-element induce defect in crystal ...
