Materials Literature
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Bulk heterojunction solar cells were fabricated by blending semiconducting cadmium selenide nanoparticles with various capping ligands and regioregular poly(3-hexylthiophene). The effects of surface ligand modification of CdSe nanoparticles and thermal treatment of fabricated cells on the device performance were inves…
In this paper the shunt active filter (SHAF) is used to improve the power quality of the electrical network by mitigating the harmonics with the help of different fuzzy membership functions (M.F.s). The proposed SHAF with different fuzzy M.F.s is able to eliminate the uncertainty in the system. On the other side fuzzy…
Phase change RAM (PRAM) is a promising memory technology because of its fast read access time, high storage density and very low standby power. Multi-level Cell (MLC) PRAM which has been introduced to further improve the storage density, comes at a price of lower reliability. This paper focuses on a cost-effective sol…
Innovative diesel particulates (PM) collection and NOx reduction technology were developed using plasma combined system over the ears. As for PM control, the EHD-assisted electrostatic precipitator (EHD ESP) to collect low resistive diesel PM and the plasma ESP to collect and incinerate PM were developed. As for NOx r…
The statement of the inverse quasistatic problems of creep theory is given in the form of a variational principle and optimal control with the restrictions on displacements and stresses. Also the necessary conditions of optimality are presented. While solving some certain examples, we obtain a continuous function of o…
An epoxy adhesive of cold curing is developed. Its processing characteristics are studied. The properties of the cured adhesive and polymeric composite materials (PCMs) based thereon are examined. It is shown that PCM data have a reinforcing impact on concrete under different climatic effects.
Metal nanowires can be coated on various substrates to create transparent conducting films that can potentially replace the dominant transparent conductor, indium tin oxide, in displays, solar cells, organic light-emitting diodes, and electrochromic windows. One issue with these metal nanowire based transparent conduc…
A novel platform based on gold nanoparticles (Au NPs) coupled with double-stranded DNA sequences and aptamers (referred to as ds(sgc8c)-Au NPs) was developed for ultrasoundcontrolled targeted drug delivery. The sgc8c aptamers with high affinity to CCRF-CEM (T-cell leukemia) cells facilitated the cellular uptake of ds(…
Copper indium gallium diselenide (CIGSe) solar cells grown on glass substrates have reached an efficiency of 20.3%. Their industrial production is becoming increasingly relevant. While various deposition techniques for the fabrication of the absorber are used by different groups and corporations, molybdenum (Mo) has b…
Since solder materials are often used for electric connections in various electric devices, the strength of solders and that of interfaces to the other metallic materials are very important. After the restriction of lead solder usage according to the European Union Waste Electrical and Electronic Equipment (WEEE) and…
In the present work, the thixotropic property of a semisolid aluminium alloy (A356) under deformation is investigated numerically where the Couette flow between two parallel plates is considered. The flow field is represented by momentum conservation equations where the non-Newtonian behavior of the semisolid material…
Nanocomposites are nowadays the most promising new materials due to their unique properties (such as high mechanical strength, chemical and thermal resistance). The nanocomposite matrix is blended with a nanostructured filler. In this study, Silicon Carbide nanofibers (NFSiC) and their bundles were tested as a reinfor…
Soluble graphene oxide (GO) and plasma-reduced (pr-) GO were investigated using crystalline silicon (c-Si) (100)/GO/pr-GO hybrid junction solar cells. Their photovoltaic performances were compared with those of c-Si/GO/pristine conductive poly(ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) heterojunction…
A design of the two-beam hybrid microwave interferometer for measuring refractive indices of metamaterials is described. It is based on the branching of radiation using a waveguide directional coupler. Radiations of the interferometer waveguide arms are summed and the phase disbalance of the interferometer arms is cou…
The electrical properties of Ag Schottky contacts to hydrothermally-grown polar (Zn- and Opolar) and nonpolar ( m -plane) bulk ZnO were investigated. Ohmic-like behavior for Zn-polar ZnO and rectifying behaviors for O-polar and m -plane ZnO were observed from current-voltage ( I – V ) measurements. Schottky contacts t…
Abstract The synthesis and characterization of Zr‐POSS and Hf‐POSS coordination polymers were reported. The IR data and the solid‐state 29Si MAS NMR indicated the existence of SiOM linkage. The polarized optical microscopy images and the XRD data suggested their crystalline nature.
Possible magnetic states of the commensurate antiferromagnetic manganate phase with a nonzero wave vector of the structure have been analyzed within the group-theoretical approach using only the space symmetry group. A phenomenological description of the magnetoelectric effect has been performed and the possibility of…
Nonlinear Field Grading Materials (FGM) are used in high voltage engineering for electric field control. The material parameters of interest include low field conductivity, threshold voltage and the nonlinearity coefficient. The difficulty in measuring the dielectric properties arises from the ohmic heating in the mat…
We study the phase diagrams for the Potts model with restricted competing nearest-neighbor interactions J 1 and ternary interactions J pt on a Cayley tree of arbitrary order k. At vanishing temperature, the phase diagram is fully determined for all values and signs of J pt /J 1 and T/J 1. The phase diagrams are obtain…
We have developed novel aluminum-doped zinc oxide films (AZO-X and AZO-HX films) with a high haze value using wet-chemical etching for various times after dc magnetron sputtering, and have investigated their electrical and optical properties, durability under high-humidity condition, and surface morphology. The AZO-X…