Materials Literature
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We have performed combined angle-resolved photoemission spectroscopy (ARPES) experiments and density functional theory (DFT) calculations of the electronic structure of the Ir(111) surface, with the focus on the existence of energy band gaps. The investigation was motivated by the experimental results suggesting Ir(11…
Off-plane scattering of time-harmonic plane waves by a plane diffraction grating with arbitrary conductivity and general surface profile is considered in a rigorous electromagnetic formulation. Integral equations for conical diffraction are obtained involving, besides the boundary integrals of the single and double la…
Nanocrystalline sulfur-doped cadmium sulfide (CdS) prepared by microwave synthesis was investigated. Photoelectrochemical and optical characteristics of sulfur-doped CdS exhibit the photoelectrochemical photocurrent switching effect. Depending on the wavelength and applied bias, the anodic and/or cathodic photocurrent…
Monte Carlo studies of the field-induced complex refractive index changes in nano-dispersed nematic liquid crystals (NLCs) exhibiting negative-positive refractive indices have been performed for various cases of applied field strengths and anchoring conditions over a broad spectral regime. The resultant field-induced…
Morphing aerospace structures could benefit from the ability of structural elements to transition from a stiff load-bearing state to a relatively compliant state that can undergo large deformation at low actuation cost. The present paper focuses on multi-layered beams with controllable flexural stiffness—comprising po…
Abstract The formation of silver nanoparticles (10–20 nm) inside poly (3‐sulfopropyl methacrylate) brushes was studied by using transmission electron microscopy, UV‐Vis spectroscopy and X‐ray photoelectron spectroscopy (XPS). Initially, the silver forms Ag $_{4}^{2+}$ clusters that are stabilised by the anionic side g…
Monodispersed iron phosphate hollow microspheres with a high degree of crystallization were prepared through a facile in situ deposition method using rape pollen grains as a biotemplate. The functional group on the surface of the pollen grains could adsorb Fe(3+), which provided the nucleation sites for growth of iron…
A linear hydrogen bonded homologous liquid crystal series has been isolated with chiral ingredient as levo tartaric acid possessing two chiral carbons and non chiral mesogen as p-n-alkoxy benzoic acids. In the synthesized hydrogen bonded complexes the p-n-alkoxy benzoic acid moiety varied from pentyloxy to dodecyloxy…
Abstract Silica based hybrid sol–gel coatings were developed to protect AA2024 alloy from corrosion. In order to have an active protection, cerium nitrate corrosion inhibitor was introduced into the coating system. The anti‐corrosion properties of the coatings were evaluated by electrochemical impedance spectroscopy (…
We investigated ion exchange processes in poly(L-glutamic acid)/poly(allylamine)hydrochloride (PGA/PAH) polyelectrolyte multilayers containing ferrocyanide using electrochemical quartz crystal microbalance and infrared spectroscopy in attenuated total reflection. Oxidation/reduction of the ferrocyanide caused a revers…
We propose a composite optical transformation to design an illusion device which can move the image of a target from one place to another place. Enclosed by such an illusion device, an arbitrary object located at one place appears to be at another place virtually. Different from the published shifted-position cloak wh…
Abstract A new embrittlement correlation method developed for the Japanese reactor pressure vessel (RPV) steels is presented. The Central Research Institute of Electric Power Industry and the Japanese electric utilities conducted a project to develop a new embrittlement correlation method for the Japanese RPV steels b…
Explicit evidence is reported to prove that huge surface enhanced Raman scattering (SERS) signal from cationic dye results from its adsorption at the nanogap of neighboring Ag particles. The addition of extremely small amount of cationic dye such as 10 −8 M R6G + provokes the formation of closely adjacent Ag nanoparti…
The influence of viscosity on droplet diameter for water-in-crude oil (w/o) emulsion with two different ratios; 20-80 % and 50-50 % w/o emulsion was examined in the Brookfield Rotational Digital Rheometer. The emulsion was prepared with sorbitan sesquiolate (Span 83) act as emulsifier at varied temperature and stirrin…
This paper reports polyaniline and cellulose blended electro-active paper (EAPap) that can produce large bending displacement at ambient humidity conditions with long lifetime durability. A novel solution processable polyaniline- p -toluene sulfonate (PANI–PTSA) salt was prepared by an inverted emulsion polymerization…
Carbon nanotubes have attracted attention not only due to electrical, optical, and mechanical applications but also due to their presence in biological and pharmaceutical products. In this study, modified multi-walled carbon nanotubes (MWCNT) were used as a model to evaluate potential subchronic effects of carbon nano…
Abstract The metal–nitrogen bond in six‐coordinate complexes [ML 1 Cl] + (M = Co, Ni, Cu or Zn) of (pyridyloxy)cyclophosphazene, five‐coordinate complexes [ML 1 Cl 2 ] (M = Cu or Zn) of green‐[NiL 1 Cl 2 ], and dimetallic complexes [L 2 (CuCl 2 ) 2 ], [L 3 (CuCl) 2 ] 2+ and [L 3 (CuCl 2 ) 2 ] [L 1 = hexakis(2‐pyridylo…
We present a protocol to selectively isolate single-walled carbon nanotubes (SWNTs) with different chiralities in a full-colored “rainbow” expansion using density gradient ultracentrifugation (DGU). Starting with SWNTs synthesized by the alcohol catalytic chemical vapor deposition (ACCVD) method, we used sodium deoxyc…
Zinc-protoporphyrin, adsorbed on the rutile TiO(2)(110) surface, has been studied using photoemission spectroscopy and near-edge absorption fine structure spectroscopy to deduce the nature of the molecule-surface bonding and the chemical environment of the central metal atom. To overcome the difficulties associated wi…
In this investigation, the effect of annealing temperature and concentration of gold nanoparticles on the photoelectrochemical properties of sol?gel deposited Au?:?TiO2 nanocomposite thin films is studied. Various gold concentrations have been added to the TiO2 thin films and their properties are compared. All the dep…