Journal of Interface, Thin Film and Low Dimension Systems
Volume:2 Issue: 1, Summer-Autumn 2018

The statistical consequences of minimal length supposition are investigated for a canonical ensemble of ideal gas. These effects are encoded in the so-called Generalized Uncertainty Principle (GUP) of the second order. In the frame work of the considered GUP scenario, a unique partition function is obtained by using of two different methods of quantum and classical approaches. It should be noticed that here we consider the magnitude of the momentum in the deformed Hamiltonian of the model. In this way the model is different from the already existing model which does not have any signicant result in quantum approach. In particular, the corrections to the thermodynamical characteristics such as the mean energy, the entropy and the density of states are achieved. The induced improvements manifest themselves at very high temperature limits. However it is shown that, if one apply the predicted observational bound on the GUP deformation parameter, the modications become more observable even at intermediate temperatures. The deformation parameter of the considered GUP model also estimated for nowadays precision of measurements of the heat capacity of an ensemble of hydrogen atoms.

In the present paper, using a cathodic pin-to-solution electrical discharge electrolysis setup, interaction of the atmospheric air plasma with aqueous solution of copper nitrate and its possibility for synthesis of nano-materials is investigated. An AC (50 Hz) high-voltage power supply (5 kV) with rectified current is used for electrical discharge of the air between a metal pin and the solution surface. The experiment shows that, immediately after beginning of the discharge, a pale green-blue powder is generated at the plasma-solution interface. Characterization of the powder by XRD and EDS analyses shows that it is Cu2(OH)3NO3. FESEM images reveal that the synthesized powder consists of crystalline micro-plates with nanometer (~200 nm) thicknesses and micrometer (~2 μm) widths. It seems that generation of OH ions and radicals in the air plasma as well as dissociation of water molecules by energetic plasma ions is responsible for the powder synthesis.

A tight binding approach based on the Bogoliubov-de Gennes approach has been used to calculate the DC Josephson current for a lattice model for S-GNR-S junctions , for short junctions with respect to superconducting coherence length. We calculate the phase, length, width and chemical potential dependence at the Josephson junction and discuss the similarities and differences with regard to the theoretical and experimental results obtained for graphene. To make calculations on graphene, using a lattice model, we convert the graphene honeycomb structure to a brick lattice structure that does not change the lattice topology. Then, by removing several atoms from the lattice , we create the simple vacancy defects in the brick lattice and we also calculate Josephson current in the apparance of these vacancies .

In the organic field effect transistors (OFETs) generation, the silicon gate oxide is 1-2 nm thick. A shrinking of this thickness down to less than 1 nm for the next generation will led to a couple of orders of magnitude increase in tunnelling as well as leakage currents. NiO-SiO2 can be used in a variety of devices, such as in circuit boards and detectors, including sensors, due to its porous structure. Owing to these specific properties, these composites attract the attention of many researches. The methods of sol-gel with using XRD (X-ray Diffraction) technique are used to determine the optimum conditions of obtaining composition and conditions of metallization. The obtained results show that increase in silicon oxide content in samples up to 10 wt. % lead to almost complete the recrystallization of nickel particles at 50 °C.

In previous work, one of us calculated the Solvation force of hard ellipsoid fluid with hard Gaussian overlap potential using hard needle wall interaction and non-linear equation proposed by Grimson- Rickyazen. In present work, using density functional theory and extended restricted orientation model, the solvation force of hard ellipsoid fluid in presence of more realistic rod- sphere and rod- surface interactions are calculated. We investigate weak and strong molecule-surface coupling strengths. The colloids distance effects on density profiles are calculated. We could not find the exact or simulation results for comparison. The results in the case are compared with the Solvation force of hard Gaussian overlap fluid and hard needle- wall interaction. The results are corresponded, qualitatively.

This study was an attempt to provide a simple solution processed synthesis route for Lead Selenide (PbSe) nanostructure thin films using the chemical bath deposition (CBD) method which is commercially available in inexpensive precursors. In the CBD method, the preparation parameters play a considerable role and determine the nature of the final product formed. Known as two main factors, the effects of complex agent (PH) and time of reaction to the evolution of the configuration and the optical band gap of PbSe nanostructured with self-assemble arrays were investigated in this study. These preparation parameters were tuned to the effect that the nanostructured semiconductors had the band gaps of around 1.4 eV and they could therefore be used for the quantum dot solar cell. The films were characterized by X-ray diffraction (XRD), UV-visible spectroscopy for energy band gap estimation and scanning electron microscopy (SEM) to morphology investigation as well as size distribution. The change in the pH altered the optical band gap from 3.56 to 1.4 eV. The exceptional photo-catalytic behavior from the increased visible light absorption supported the separation of photo-generated electrons and holes, and it also improved the photo-catalytic oxidizing species with the PbSe nanostructured thin films.