Thin-film epitaxy is critical for investigating the original properties of materials. To obtain epitaxial films, careful consideration of the external conditions, i.e. single-crystal substrate, temperature, deposition pressure and fabrication method, is significantly important. In particular, selection of the single-crystal substrate is the first step towards fabrication of a high-quality film....

Wurtzite structure gallium nitride (GaN) thin film was grown on a c-plane sapphire (0001) substrate through spin coating method followed by nitridation process. Readily available and cheap gallium (III) nitrate hydrate (Ga(NO3)3·xH2O) powder was used as the gallium source. Besides that, ethanol-based precursor solution which has better wetting properties and fast evaporation rate was prepared. ...

The work is focused on thin film technologies especially on sputtering of dielectric thin film layers. The set of thin film capacitors was created on silica glass substrate. Aluminum electrodes of separated capacitors are deposited by method of vacuum evaporation. The AlN dielectric layer was prepared by reactive high frequency sputtering from aluminum target in nitrogen atmosphere. Dielectric ...

Strain sensors build up directly on machine components by thin film techniques enable measurement of forces, strain and pressure even in harsh environments. Up to day, the application of thin film sensors is restricted to planar surfaces due to limitations in standard patterning techniques. We present an alternative patterning method based on laser thin film ablation. During laser processing of...

Abstract: In a probabilistic model of a film over a disordered substrate, Monte-Carlo simulations show that the film hangs from peaks of the substrate. The film profile is well approximated by a necklace of Wulff shapes. Such a necklace can be obtained as the infimum of a collection of Wulff shapes resting on the substrate. When the random substrate is given by iid heights with exponential dist...

A two-step white-light spectral interferometric technique is used to retrieve the ellipsometric phase of a thin-film structure from the spectral interferograms recorded in a polarimetry configuration with a birefringent crystal. In the first step, the phase difference between p- and s-polarized waves propagating in the crystal alone is retrieved. In the second step, the additional phase change ...

In the present work, The third order optical nonlinearity and optical limiting properties of Magnesium phthalocyanine (MgPc) thin film have been investigated. Third order optical nonlinearity of MgPc thin film has been studied by z–scan method using a cw He-Ne laser at ~633nm wavelength as an exciting source. The normalized transmission for both open and closed aperture z scan are measured and ...

We examined CD133 distribution in a human hepatoblastoma cell line (HuH-6 clone 5). We directly observed the cultured cells on a pressure-resistant thin film (silicon nitride thin film) in a buffer solution by using the newly developed atmospheric scanning electron microscope (ASEM), which features an open sample dish with a silicon nitride thin film window at its base, through which the scanni...

Objective(s): The current studys goal is to develop and test a tramadol hydrochloride transdermal gel based on vesicular drug delivery approaches. Materials methods: Transferosomes were chosen as the colloidal carrier for preparation. Thin film hydration was used create transferosomes. obtained transferosomes characterised content, diameter, zeta potential, entrapment efficiency, invitro releas...