Showing papers in "Current Applied Physics in 2011"

TL;DR: In this paper, the performance data of metal oxide thin-film electrodes have been presented, and the supercapacitors exhibited the specific capacitance values between 50 and 1100 F g-1, which are quite comparable with bulk electrode values.

TL;DR: In this paper, the simple synthesis of MFe 2 O 4 (where M =Cu, Ni, and Zn) nanoparticles by a modified sol-gel method using high purity metal nitrates and aloe vera plant extracted solution was reported.

TL;DR: In this article, a review is presented on the status of synthesizing thin films of metal chalcogenide and metal oxides by CBD and SILAR, and properties and applications of the thin films are also summarized.

TL;DR: There was a statistically significant difference between the k -NN and LDA algorithms for the classification of wrist-motion directions such as up, down, right, left, and the rest state.

TL;DR: In this paper, the linear and the third-order nonlinear optical absorption coefficient and refractive index changes of a hydrogenic impurity in an ellipsoidal quantum dot have been investigated, using the compact-density matrix formalism and an iterative method.

TL;DR: In this paper, the anti-corrosive effect of xanthone (XAN) on the corrosion of mild steel in 0.5 m H 2 SO 4 has been studied by gravimetric and UV-visible spectrophotometric methods at 303 −333 K.

TL;DR: In this article, the poling conditions of lead-free 0.5Ba(Zr0.7Ca0.2Ti0.8)O3-0.5(Ba0.3)TiO3 ceramics were investigated.

TL;DR: In this paper, a smart hybrid material called Graphene based nano composites which have piezoresistivity for strain sensor has been presented to address the need for new smart hybrid materials, and the strain response of graphene/epoxy composites showed fairly symmetrical and reversible behavior.

TL;DR: In this article, the large-scale nanowire-like (NW) structure of tungsten oxide is synthesized by the deposition of Tungsten metal on the substrate of porous single-wall carbon nanotubes (SWCNTs) film, followed by thermal oxidation process.

TL;DR: In this paper, the effect of temperature, frequency and composition on dielectric constant and conductivity of spin ferrites has been studied using impedance measurements in the frequency range 10 Hz to 10 MHz and in the temperature range 310 −473 K. The results indicate the presence of non-Debye type of relaxation in these ferrites.

TL;DR: In this article, three kinds of graphene oxide (GO) solutions with different concentration of 0.05, 0.03, and 0.01 µm were applied to the TiO 2 thin film.

TL;DR: In this paper, the structural and micro-structural characterization of nanocrystalline La1−xSrxFeO3 nanoparticles was carried out with the help of X-ray diffraction (XRD) and transmission electron microscopy (TEM).

TL;DR: Graphene synthesis on Fe foil at low temperature was performed in this paper, where a 100μm-thick Fe foil was used as a catalyst and acetylene as a hydrocarbon source were used for graphene growth.

TL;DR: In this paper, the authors synthesized Fe3O4 nanoparticle-dispersed multiwalled carbon nanotubes (MWNTs) to evaluate their potential applicability to supercapacitor electrodes.

TL;DR: In this paper, the Rietveld refinement, microstructure, conductivity and impedance properties of Ba[Zr0.25Ti0.75]O3 ceramic synthesized by solid state reaction were reported.

TL;DR: The tin-based gas diffusion electrode was fabricated and applied for CO2 electroreduction in a zero gap cell as discussed by the authors, which showed good stability during CO2 reduction even though the conversion of CO2 into formate reached only 18% faradaic efficiency during the initial 5min and maintained about 12% until the end of the reduction time of 1h.

TL;DR: In this paper, the Euler-Bernoilli hypothesis was used to study the free vibration of a microbeam in a nonlinear oscillator arising in the microbeam-based microelectromechanical system (MEMS).

TL;DR: In this paper, an Ag/TiO2 nanocomposite with various silver contents was synthesized by combination of sol-gel and the novel arc discharge methods in liquid, which was characterized by X-Ray diffraction (XRD), Brunauer Emmett Teller (BET), transmission electron microscope (TEM) and ultra violet-visible absorption spectroscopy (UV-Vis).

TL;DR: In this article, a cement-based piezoelectric composites have been prepared from Portland cement with the addition of 70 vol.% of PZT powders and various amounts of modified CNTs ranging from 0 to 1.3 vol.%.

TL;DR: In this paper, the size effect of microtubules (MTs) is studied via modified strain gradient elasticity theory for buckling by using Bernoulli-Euler beam theory.

TL;DR: In this article, the effect of two Amazonian trees (Guatteria ouregou and Simira tinctoria) on low carbon steel corrosion was investigated in acidic solutions by using electrochemical techniques.

TL;DR: In this paper, the properties of Mn substituted Zinc oxide nanoparticles with compositional formula Zn1−xMnxO where x = 0.00, 0.04 and 0.08 were synthesized by sol-gel route.

TL;DR: In this article, the effects of HNO3-treated short carbon fibers (HCFs) concentration on the tensile properties of the composites were examined, and the results were confirmed by scanning electron micrographs of the ABS/PA6/HCF composites.

TL;DR: In this article, the dielectric dispersion consists of both dipolar and interfacial polarization, and the activation energy of the deformation process from the electric modulus measurements was calcaulated, indicating that correlated barrier hopping (CBH) is the most suitable mechanism for the ac conduction behavior.

TL;DR: In this paper, the effects of H 2 plasma treatment on characteristics of Al-doped ZnO (AZO) thin films prepared by RF magnetron sputter at 200°C for amorphous silicon (α-Si) thin film solar cell fabrication were investigated.

TL;DR: In this paper, a prototype of thin film transistors using direct write technology following electrohydrodynamic approach for patterning and spray deposition has been successfully fabricated by using EHD technology in this research.

TL;DR: In this article, the dielectric properties of BaBi4Ti4O15 ceramics were investigated as a function of frequency (10(2)-10(6) Hz) at various temperatures (30 degrees C-470 degrees C), covering the phase transition temperature.

TL;DR: In this article, the optical limiting behavior in the low power regime for the first time in literature using a 532-nm-second harmonic of a diode pumped Nd: YAG laser was reported.

TL;DR: In this article, a review of recent nanoscale PFM studies of domain switching dynamics in ferroelectric (FE) thin films is presented, including defect-mediated inhomogeneous nucleation, pinning-dominated nonlinear dynamics of domain walls and many other intriguing phenomena.

TL;DR: In this article, a modified polyethylene oxide base polymer electrolyte has been modified by doping of EMImDCN and PEG as plasticizers, which resulted in enhanced conductivity and improved DSSC response.