Showing papers in "Materials Science in Semiconductor Processing in 2013"

TL;DR: In this paper, the interaction between NiO nanoparticles and glucose has been studied using UV-vis absorption and fluorescence spectroscopy, and the zeta-potential of NiO nano-articles was used to gain insight about the interaction mode.

TL;DR: A review of recent research in 1D zinc oxide nanostructures with emphasis on ZnO-based nanowires (NWs or NRs) used as photocatalysts for the degradation of environmental pollutants, particularly textile and industrial dyes, under appropriate light irradiation is presented in this paper.

TL;DR: In this paper, a facile and low-cost successive ionic layer adsorption and reaction method to synthesize nanocrystalline CuO thin films was investigated, showing that the structural and surface properties of the thin films were improved with the increase in the deposition cycles as a result of which the optical absorption edge of CuO shift towards longer wavelength, and the optical band gap energy decreases from 2.48 eV to 2.31 eV.

TL;DR: In this paper, the efficiency of different nanomaterials used in photocatalytic hydrogen production is discussed, showing that nanosized photocatalysers have a much greater surface area and thus give a better hydrogen yield than micro-sized ones.

TL;DR: In this paper, a review summarizes recent research on Cu 2 O-based solar cells that have nanostructures, and different methods for depositing and growing Cuprous oxide (Cu 2 O) nanocrystals with morphological control are discussed.

TL;DR: In this paper, pure and iron-doped ZnS quantum dots (QDs) were synthesized using a simple and fast procedure based on chemical precipitation in aqueous solution.

TL;DR: In this article, the effect of reaction temperature and time on the crystalline phase and morphology of Fe2O3 products was investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM), and Fourier transform infrared (FTIR) spectroscopy.

TL;DR: In this paper, a novel CdS and PbS quantum dots (QDs) co-sensitized TiO 2 nanorod arrays photoelectrode for quantum dots sensitized solar cells (QDSSCs).

TL;DR: In this paper, the effect of doping on the band gap was investigated by a photoluminescence (PL) spectrometer, which showed that Mg 2+ is a good dopant to control band gap of the ZnO properties.

TL;DR: In this paper, a thin film of CuInS2 microspheres was prepared and its application in solar cells was investigated and the optical band gap was estimated to be 2.28 eV.

TL;DR: In this article, various techniques such as differential scanning calorimetry-thermogravimetric analysis (DSC-TGA), Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible-near infrared (UV-vis-NIR), photoluminescence (PL), >as well as electrical and sensor techniques have been used for the characterization of indium oxide (In2O3) nanoparticles.

TL;DR: In this article, the structural, stoichiometric proportion, morphology and optical properties of zinc sulfide thin films were investigated as a function of thiourea and ammonia concentrations using X-ray diffraction (XRD), energy-dispersive spectroscopy (EDS), scanning electron microscopy (SEM) and UV-visible spectrophotometry measurements.

TL;DR: In this article, the structural and surface morphological properties of Cadmium Selenide (CdSe) thin films have been studied using X-ray diffraction, scanning electron microscopy and atomic force microscope techniques.

TL;DR: In this article, the NiZn-ferrite/PANI nanocomposites were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared (FTIR), and UV-vis spectra.

TL;DR: In this paper, zinc sulfide (ZnS) nanoparticles were synthesized through an environmentally and economically friendly method using the fungus Fusarium oxysporum, which was characterized using UV-visible spectroscopy, FTIR, X-ray diffraction (XRD), and Fluorescence Spectroscopy (FSE).

TL;DR: In this article, the photocatalytic activity of semiconducting sulfide quantum dots for degradation of an azo dye called reactive black 5 (RB5) was investigated.

TL;DR: In this paper, the authors used the atmospheric pressure chemical vapor deposition (CVD) thin film technology to the fabrication process of multicrystalline silicon solar cells as a simple, low cost and very effective technology for efficiency device improvement by reducing reflection and improving the light generated current.

TL;DR: In this paper, X-ray diffraction results showed that all the films are polycrystalline zinc oxide having hexagonal wurtzite structure and upon doping, the films exhibit reduced crystallinity as compared with the undoped film.

TL;DR: In this article, a method for degradation and decolorization of methyl green (MG) on semiconducting oxides and nanobimetal (Ag/Pt) doped silica sol-gel powder by using UV and solar light was described.

TL;DR: In this article, a series of rare earth doped composite Pt/RE/TiO 2 -CdS (RE=La 3+, Eu 3+, Er 3+, Gd 3+ ) photocatalysts were studied by means of ultraviolet-visible spectroscopy, photoluminiscence spectra, X-ray diffraction, transmission electron microscopy, specific surface areas and the electrochemistry method.

TL;DR: In this article, the effect of annealing on microstructure and optical properties of V 2 O 5 thin films were investigated, and it was also confirmed that the growth of nanorods strongly correlates with annaling conditions; nanorod formation can be explained by surface diffusion phenomenon.

TL;DR: In this paper, the photocatalytic degradation of an azo dye Direct Yellow 4 (DY 4) using Activated Carbon loaded ZnO (AC-ZnO) as a photocatalyst in aqueous solution has been investigated under solar irradiation.

TL;DR: In this article, the structural and optical properties of Cadmium Selenide (CdSe) thin films were investigated as a function of the sodium selenosulphate concentrations or ammonia concentrations in precursors using scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), X-ray diffraction (XRD) measurements, transmission electron microscope (TEM) and UV-visible spectrophotometer measurements.

TL;DR: In this article, the structural, optical and electrical properties of spray ZnO films were investigated on glass at different substrate temperatures from 200°C to 500°C and their structural and optical properties were investigated.

TL;DR: Cerium-silver (Ce-Ag) co-doped ZnO was synthesized by precipitationdecomposition and tested for the degradation of Reactive Red 120 dye under natural sun light irradiation as discussed by the authors.

TL;DR: In this article, pure and cadmium doped tin oxide thin films were deposited on glass substrates from aqueous solution of Cadmium acetate, tin (IV) chloride and sodium hydroxide by the nebulizer spray pyrolysis (NSP) technique.

TL;DR: In this article, the authors synthesize polyaniline (PANI)/TiO2 nanocomposite samples with various dopant percentages of TiO2 using a chemical oxidative method.

TL;DR: In this article, the effect of preparation parameters such as microwave power, irradiation time, and type of copper precursor on the particle size of the products was studied, and the as-deposited CdS/CuInS 2 films were used for the photovoltaic measurements.

TL;DR: In this article, the structure, composition, morphology and optical properties of oxidized titanium dioxide thin films were characterized by Raman spectroscopy, X-ray diffraction, Xray photoelectron spectrograph, atomic force microscopy and UV-visible spectrograms.

TL;DR: In this paper, the orthorhombic structure of calcium ferrite nanoparticles has been revealed by X-ray diffractometry, and the morphology and size of the synthesized nanoparticles have been observed by scanning electron microscopy and transmission electron microscope, respectively.