Materials Literature
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The common origin of the “enhanced transmission” through small holes and polarization plane rotation (“optical activity”) resonances peculiar for a pair of conjugated planar chiral irises is demonstrated. The eigenoscillation spectra are studied extensively from the “aperture” eigenoscillations of plane junctions resp…
Femtosecond laser processing is emerged as a promising tool to functionalize surfaces of various materials, including metals, semiconductors, and polymers. However, the productivity of this technique is limited by the low efficiency of laser raster scanning. Here we report a facile approach for efficiently producing l…
Zinc Oxide thin films were grown using a homemade metallorganic chemical vapor deposition apparatus with a non-centrosymmetric groove for the substrate. Films grown with relatively constant thickness and varying temperatures were tested using photoluminescence spectrometry, ex-situ spectral reflectance, and ex-situ tr…
Frequency dependence of magnetostrictive phenomenon of as-cast 2605SA1 ribbon was studied. We applied a sinusoidal sweeping field (H), with a fixed frequency (f), along length (L) of the ribbon, and simultaneously recorded the longitudinal magnetostriction (λ∥) and the transverse magnetostriction (λ⊥) as a function of…
The Rapid Flashover pollution test method (RFO) exposes energized polluted insulators to fog and uses step changes of voltage to identify a minimum flashover voltage. The RFO method reduces test time by a factor of three or more compared to up-and-down voltage application method and is thus time- and cost-effective. I…
A new design for an experimental set-up is proposed for monitoring the contact angle, droplet height, base diameter, corrosion rate and volume loss under a single droplet of NaCl placed gently on carbon steel surface. The monitoring results indicated that the contact angle and droplet height decreased while the volume…
The progress of the oxidation of aniline with ammonium peroxydisulfate in an alkaline aqueous medium has been monitored in situ by attenuated total reflection (ATR) Fourier transform infrared spectroscopy. The growth of the microspheres and of the film at the ATR crystal surface, as well as the changes proceeding in t…
A study of shear deformation of α-crystalline nylon6 is undertaken, using dispersion-corrected density functional theory. The shear stress-strain relationship and shear strength for interlayer shear deformation are computed. A conformation change induced by shear is identified along twinning deformation, whereby the c…
The microstructure and properties of amorphous D,L-polylactide subjected to different treatments in supercritical carbon dioxide (SC-CO 2 ) were investigated. Atomic force microscopy analysis demonstrated that plasticization and subsequent foaming of the polymer in SC-CO 2 leads to significant changes in its internal…
Received 28 March 2014 Accepted 24 Sep. 2014 Available online 01 Dec. 2014 In this research, BaTiO3 thick deposit has been successfully sprayed by air plasma spray. Microstructure and dielectric properties of the thick films were investigated by scanning electron microscopy (SEM) and LCR meter, respectively. XRD measu…
Iron-containing mesoporous silica gel samples were obtained using sol-gel synthesis followed by drying in supercritical carbon dioxide. A relationship between the conditions of preparation and the textural characteristics of the silica gels was established. The materials obtained are considered as promising Fenton cat…
Abstract Lukkulaisvaaraite, Pd 14 Ag 2 Te 9 , is a new platinum-group mineral discovered in the Lukkulaisvaara intrusion, northern Russian Karelia, Russia. In polished section crystals are ~40 mm across, rimmed by tulameenite and accompanied to varying degrees by telargpalite and Bi-rich kotulskite. Lukkulaisvaaraite…
It is experimentally shown that low nickel oxide doping (0.01–0.15 mol. %) can quantitatively and qualitatively alter the light-scattering properties of glass–ceramics that have zinc spinel as the base crystalline phase. Based on experimental data concerning the structure of the glass–ceramics studied here, it is conc…
Dealloying is known to be a powerful method to produce porous materials mainly with noble metals because the mechanism involves the selective dissolution of specific element(s) by corrosion in acid/alkali aqueous solutions. Recently, an alternative dealloying method has been developed by our research group using a met…
The electronic structure of silicene on Ag(111) is studied by scanning tunneling microscopy and angle resolved photoemission spectroscopy. A flat band at 0.9 eV below the Fermi level is revealed. We find that the flat band is strongly suppressed near atomic defects, domain boundaries and step edges compared to that on…
We present a dialysis technique to prepare the 10-hydroxycamptothecin (HCPT)-loaded nanoparticles (NPs) using methoxypolyethylene glycol-poly(D,L-lactide) (PEG-b-PLA) and PLA, respectively. Both HCPT-loaded PEG-b-PLA NPs and HCPT-loaded PLA NPs were characterized by differential scanning calorimetry (DSC), dynamic lig…
We report on the fractional quantum Hall states of germanene and silicene where one expects a strong spin-orbit interaction. This interaction causes an enhancement of the electron-electron interaction strength in one of the Landau levels corresponding to the valence band of the system. This enhancement manifests itsel…
We have developed a stacked image sensor based on a thin-film crystalline selenium (c-Se) heterojunction photodiode. Uniform c-Se-based photodiodes laminated on complementary metal-oxide-semiconductor circuits were fabricated by tellurium-diffused crystallization. We herein present the first high-resolution images obt…
Inhibition performance of omeprazole for mild steel in 0.1M H2SO4 solution has been investigated through different approaches including potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), weight loss, scanning electron microscope (SEM) experiments and theoretical calculations. The experimental…
Research Article| December 01, 2014 Carbon-Based Nanoscience Michele Lazzeri; Michele Lazzeri 1IMPMC, Sorbonne Universités UPMC Univ. Paris 6, UMR CNRS 7590, MNHN, IRD UMR 206, 4 place Jussieu, F-75005 Paris, FranceE-mail: michele.lazzeri@impmc.upmc.fr Search for other works by this author on: GSW Google Scholar Ameli…