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Spectroscopy is a powerful non-destructive technique that utilizes electromagnetic radiation interaction effect to determine the energy level and structure of atomic or molecular substance. Spectroscopy technique has been successfully used to quantify some power transformer condition monitoring parameters such as Furan and oil interfacial tension value. This paper investigates the feasibility of extending...
This paper describes the characteristics of a thin film of TiO2 for Dye-sensitized solar cell (DSSC). The active layer of Ti-Nanoxide T / SP is covered by a reflective layer of Ti-Nanoxide R / SP by using the screen printing method. The surface morphology of thin films is generally mesoporous and is in the nanometer size scale. Thin film TiO2 consists of 48.46% oxygen (O) and 51.54% titanium (Ti),...
Spectroscopy is a powerful non-destructive technique that utilizes electromagnetic radiation interaction effect to determine the energy level and structure of atomic or molecular substance. In the last two decades, several researchers attempted to explore new various applications of spectroscopy technology in transformer condition monitoring. These applications include quantifying furan concentration...
Highly graphitized nucleophilic group functionalized Multiwall carbon nanotubes are utilized to fabricate PDMS/FMWCNTs nanocomposites with low weight fraction (0.1 wt%). The effect of solvents on dispersion of FMWCNTs is studied. THF shows higher dispersion power in comparison with chloroform. The dielectric constant is measured using impedance analyzer in the range of 106–109 Hz. The result indicate,...
The paper presents the synthesis as well as optical, structural and morphological characterization of CdS nanoparticles embedded in silico-phosphate thin films, as a promising luminescence temperature sensing material. The films were synthesized by sol-gel method, spin coating technique. UV-Vis (Ultraviolet-Visible) ellipsometric absorption is specific to CdS semiconductor nanoparticles with a cut-off...
The optical properties of Bismuth Telluride (Bi2 Te3) and Antimony Telluride (Sb2Te3) thin films grown using pulsed laser deposition (PLD) were investigated. In one set of samples, the two materials were grown, on n-Si substrates, with growth temperatures ranging from 25 to 450°C. In the second set, the films were deposited on microscopic glass slides at 150 °C. The optical properties were studied...
Single crystals of pure and L-glutamic acid doped zinc tris (thiourea) sulphate(ZTS) were grown from aqueous solution by slow evaporation technique. The grown crystals were subjected to various studies such as FTIR, Powder X-Ray diffraction, second harmonic generation (SHG), UV-visible spectra and thermal analysis (TG-DTA). The FTIR study confirms the incorporation of L- glutamic acid into ZTS crystal...
Gel polymer electrolytes (GPEs) composed of MG49, lithium triflate (LiTF) salt and ethylene carbonate (EC) as a plasticizer is described. The formation of polymer-salt complexes was confirmed by FTIR structural studies. The effect of plasticizer on the ionic conductivity is explained in term of morphology of the film. The plasticizer found to increase the conductivity and reduce the crystalline nature...
A growing need for eco-friendly energy sources have led recently to a frantic search of new compositional systems for photovoltaic applications. The nanocomposite titania-germanium (TiO2-Ge) systems represent a new viable family of optoelectronic materials. Their structural, optical and electronic properties can be easily tailored by customizing the density and size of Ge dots in the TiO2 matrix....
Synthesis of a new type of calixarene-doped polyaniline (PANI) is reported. Polyaniline as a free base (emeraldine) was synthesized by a chemical method, in the presence of HCl and ammonium peroxodisulphate as oxidant. PANI was doped with p-sulfonatocalix|4|arene. The structure of the protonic acid doped- PANI was investigated by infrared and UV-VIS spectroscopies. The spectral features of dopant...
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