Commercial zeolites with CHA, MFI, and LTL framework topology are subjected to acid treatment chromic (H2CrO4) solutions concentrations ranging between 0.1 10 w/%. As forms polymeric species as a function of concentration, specific effects obtained these three zeolites, differing by their topology, pore size, Si/Al ratios crystal size. The etched characterized X-ray diffraction, SEM, TEM, N2 ph...

Zinc Oxide (ZnO) thin film have been deposited using Successive Ionic Layer Adsorption and Reaction (SILAR) technique, which is based on alternate dipping of substrate in the solution and deionized water. The thin film was grown on glass substrate. The precursor for ZnO film was diluted aqueous solution of ZnSo4 complex with NH3. The film was investigated by X-ray diffraction, Scanning electron...

Naphthalene diimides have electrochromic applications due to their highly stable dark reduced state along with a transparent colourless neutral state. Here we show the morphology of aggregated structures at different pHs has greater influence on chromic properties than chemical structure.

AIM This study was conducted to evaluate and compare the tissue reactivity and suture handling characteristics of chromic gut, silk, and 'jimat' suture materials in cat thigh muscle. MATERIALS AND METHODS This experimental study was conducted from November, 2013 to April, 2014 in Kombolcha Animal Diseases Survey, Research and Diagnostic Laboratory, Kombolcha, Ethiopia. A total of 36 local bre...

This article reports the effect of vapour chopping technique on the properties of vacuum evaporated poly (3methyl thiophene) thin films such as surface morphology, optical transmittance, band gap, refractive index and optical transmission loss. Vapour chopping gives smooth surface morphology with smaller grain size reduced roughness than non chopped thin films, while the transmittance of the th...

A diketopyrrolopyrrole (DPP) with fluorenone (FN) based low band gap alternating copolymer (PDPPT-alt-FN) has been synthesized via Suzuki coupling. PDPPT-alt-FN exhibits a deep HOMO level with a lower band gap. Fabricated organic thin film transistors using PDPPT-alt-FN as a channel semiconductor show p-channel behaviour with the highest hole mobility of 0.083 cm(2) V(-1) s(-1) measured in air.

Hexagonal boron nitride (h-BN) is known as promising 2D material with a wide band-gap (~6 eV). However, the growth size of h-BN film is strongly limited by the size of reaction chamber. Here, we demonstrate the large-roll synthesis of monolayer and controllable sub-monolayer h-BN film on wound Cu foil by low pressure chemical vapor deposition (LPCVD) method. By winding the Cu foil substrate int...

An efficient way for the control of spin wave propagation in a magnetic medium is the use of periodic patterns known as magnonic crystals (MCs). However, the fabrication of MCs especially bi-components, with periodicity on nanoscale, is a challenging task due to the requirement for sharp interfaces. An alternative method to circumvent this problem is to use homogeneous ferromagnetic film with m...

Cadmium oxide (CdO) thin films have been deposited by a locally developed spray pyrolysis method onto glass substrate at 473K. The optical and electrical properties of the as-deposited and annealed films are studied in details. The surface morphology of the samples was studied by scanning electron microscopy (SEM). The SEM micrograph of as-deposited film shows uniform deposition over the substr...

Because of their ability to strongly localize and enhance optical fields, plasmonic nanostructures have the potential to dramatically amplify the inherent nonlinear response of materials. We illustrate the impact of this plasmonic interaction by investigating the third-harmonic generation (THG) from a system of film-coupled nanostripes operating at 1500 nm. Both the film and the stripes are gol...