Showing papers in "Current Applied Physics in 2003"

TL;DR: In this article, a review of some of the results obtained at our laboratory in the area of conducting polymers (CPs) has been presented, where the authors have been actively working towards the application of CPs to Schottky diodes, metal-insulator-semiconductor devices and biosensors for the past about 10 years.

TL;DR: The use of various biomaterials for biosensors as well as their availability are described, which comprises whole or part of a living structure or biomedical device, which performs natural function.

TL;DR: In this paper, a temperature variation of dc conductivity in the range 77-300 K has been carried out in order to explore the mechanism of charge transport in polyaniline (PAN) doped with sulfuric acid.

TL;DR: In this paper, a self-ignition reaction was performed on nickel ferrite nanoparticles from a citrate precursor and XRD patterns and FTIR spectra confirmed the formation of single phase nickel ferrites.

TL;DR: A Schottky diode has been constructed from chemically synthesised copolymer of cyclohexyl and hexyl substituted thiophene units, and various metals such as In, Ag, Al, Sn, etc as discussed by the authors.

TL;DR: In this article, powder X-ray diffraction pattern is taken and the peaks are compared with the JCPDS values, and it is found to be the triclinic structure.

TL;DR: In this paper, the authors have shown that poly(2-fluoroaniline) has been electrochemically deposited on ITO coated glass plates in the form of thin films using 4 M perchloric acid as electrolyte.

TL;DR: A good correlation was found between the total serum cholesterol obtained by the present method and commercial Enzo-kit method employing free enzymes and among the various serum substances tested at their physiological concentrations; Testosterone, vit D and progesterone caused 59%, 41% and 39% inhibition, while NaCl, KCl, CuSO4, creatinine, NaHCO3, albumin and estrogen had practically no effect.

TL;DR: In this paper, an enzymatic, porous silicon (PS) based potentiometric method for estimating triglycerides is reported, where Lipase, an enzyme which hydrolyses triglycerides was immobilised on PS which was prepared from p-type (1 − 0 − 0) crystalline silicon and was thermally oxidized.

TL;DR: In this paper, the electrical properties of thermally evaporated zinc phthalocyanine, ZnPc, semiconductor thin films were measured over a wide range of temperature (from 170 to 430 K) and frequency (between 0.1 and 20 kHz).

TL;DR: In this paper, a detailed analysis of the mechanism of charge transport in 3-methyl thiophene has been reported and the observed dc conductivity data has been analyzed in the light of existing theoretical models.

TL;DR: In this paper, a solution of poly(3-hexyl thiophene) (P3HT) with stearic acid (SA) in chloroform at air-water interface using Joyce-Loebl LB trough was obtained.

TL;DR: In this article, bismuth telluride thin films were characterized for their structural, morphological, optical and compositional analysis, which revealed polycrystalline anisotropic and layered structure of these films with different compositional stoichiometry.

TL;DR: In this article, thin n-CdS and p-cdTe films were prepared by chemical spray pyrolysis and electrochemical deposition respectively, and a typical increase in cell efficiency was found to increase from 8% to 10.5% using CdS film with Cd:S ratio as 1:1.1 and 1: 1.3 respectively.

TL;DR: In this paper, a pre-tested, synergistic formulated microbial consortium is used to detect the biochemical oxygen demand (BOD) load of synthetic as well as industrial wastewaters having low-moderate-high biodegradability.

TL;DR: In this paper, the formation of NbSe 2 nanotubes and nanofibers on the basis of deseleniditive transition from a nbSe 3 fiber-shaped crystal was investigated.

TL;DR: In this article, a self-consistent tight-binding formalism based on the density functional theory coupled with the Keldysh Green's functions is proposed to predict the appearance of the current loop inside the molecules, which produces the local magnetic field whose strength is more than 0.1 T at the bias voltage of 1.2 V.

TL;DR: In this article, the surface energy anisotropy of carbon-adsorbed iron surfaces related to carbon nanotube growth was investigated using pseudopotential density functional calculations.

TL;DR: In this article, all-optical logic gates with bacteriorhodopsin (bR) protein molecules have been demonstrated based on switching of a cw probe laser beam by multiple pulsed pump laser beams due to nonlinear intensity-induced excited-state absorption.

TL;DR: In this article, hexamethyldisiloxane (HMDS) and 2,3-epoxy-1-propanol (glycidol) plasma polymerized films were deposited onto both surfaces of the capillary separation channel.

TL;DR: In this article, the authors reported fluorescence emission and excited state lifetime measurements on fluorescent probes entrapped in TEOS sol-gel for monitoring the physico-chemical processes for characterization and monitoring of local environment (pores) of dopant molecule (fluorescent probes) for construction of sensing layer for optical transducer.

TL;DR: In this article, a review of the current status of self-assembled monolayers (SAMs) on different surfaces (2D systems) as well as monolayer formation on metallic and semiconducting cluster surfaces (3D SAMs) to form monoline-protected nanoclusters (MPCs) and their assemblies is reviewed.

TL;DR: In this article, the quasi-two-dimensional magnetism in the layered transition metal compound (C n H 2 n +1 NH 3 ) 2 CuCl 4 (n =10, 14) was investigated by means of electron paramagnetic resonance (EPR) and superconducting quantum interference device measurements.

TL;DR: In this paper, a room temperature ferroelectric liquid crystal mixture was dispersed in UV curable polymers of different viscosity in 30:70 wt/wt ratio.

TL;DR: In this paper, the detailed preparation methods of small molecule and polymer materials, and the device characteristics are discussed, using vacuum deposition and spin coating methods, and their device characteristics were investigated.

TL;DR: In this article, the transition behavior for various iron oxide-polypyrrole compositions was investigated with the help of differential scanning calorimetery, and it has been observed that the samples show a magnetic to nonmagnetic transition at 410 °C.

TL;DR: In this article, materials synthesis in high magnetic fields are investigated for high-T c superconductors at the High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku University.

TL;DR: In this article, the authors developed a software to simultaneously control the sample manipulator (three orthogonal rotations), toroidal electrostatic analyzer and spectrum acquisition using LabView R.

TL;DR: In this article, a nano-size particle was prepared on silicon substrate by hydrothermal synthetic method and successive sol-gel spin coating method and applied to fabrication of micro-gas sensor array.

TL;DR: In this paper, Cd-in-te films were electrodeposited potentiostatically over SnO2:F coated glass substrates from aqueous acidic solutions containing CdSO4, InCl3 and TeO2 at 85 °C.