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In this work a very low cost and conventional technique was used to prepare Ge nano/microstructures by means of filling the material inside porous silicon (PS) using thermal evaporator. PS was prepared by anodization of Si wafer in ethanoic hydrofluoric acid (HF).The Ge layer was deposited onto the PS by thermal evaporation.Subsequent annealing at 650°C and 750 C for 30 mins were done to drive in...
This paper studies the preparation procedure of nanostructured (LaxBa1-x)B6 cathode materials by liquid phase reactive spark plasma sintering. The phase identification and purity of the sintered samples is determined by X-ray diffraction (XRD) and X-ray fluorescence. The vibrational property is examined by using Raman spectroscopy. The SEM and electron back-scattered diffraction (EBSD) investigation...
The alpha-MoO3, h-MoO3 and Mo4O11 oxides are formed by low-temperature chemical synthesis from water-based solutions by different precipators. Phase purity and high crystallinity of final products are confirmed with XRD and TEM analysis. Spectral properties of molybdenum oxide nanocrystals are measured with IR and Raman spectroscopies. Lo-temperature precipitation from water-based solutions can be...
Hydrogenated silicon (Si:H) thin films were deposited at a selected argon diluting ratio under varied RF power density and the influence of it on nanocrystallization was studied by XRD, FTIR and Raman spectroscopy.
Summary form only given. Successful deposition of nano-phase crystalline TiO2 thin films on polymeric substrates, polymethylmethacrylate (PMMA) and knitted polyethylene (PE) at room temperature was achieved using the dense plasma focus (DPF) device. Deposition was achieved using argon- oxygen gas mixture in the ratio of 9:1 after evacuating the chamber to a base pressure of 10-5 mbar. The working...
Ball milling is an effective way of producing defective and nanostructured graphite. In this work, graphite was milled under 3 bar hydrogen in a tungsten carbide milling pot, and the effect of milling conditions on the microstructure and hydrogen storage properties was investigated by TGA-Mass Spectrometry, XRD, SEM and Raman spectroscopy. After milling for 10 hours, 5.5 wt% hydrogen was released...
This paper describes the possibilities of obtaining nanostructured TiO2 using Spray Pyrolysis Deposition and its application in a solid state solar cell (FTO/ TiO2 In2S3/ CuSbS2/ graphite). Nanostructured TiO2 films are deposited from ethanolic solution of titanium (IV) isopropoxid, (TTIP, 99.99%, Sigma-AIdrich), and acetilacetonate, (AcAc, 99+%, Aldrich); two parameters are proposed for investigation:...
Aluminum-doped zinc oxide nanorods are deposited on glass by solution chemical for the first time. The as-grown samples are characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-Vis spectroscopy and Raman spectroscopy. We observe that Raman spectroscopy of aluminum-doped zinc oxide nanorods is different from un-doped zinc oxide nanorods. The intensity of Raman peak at 437...
We investigated the dependence of magnetic properties with composition in nanocrystalline Mn-Zn ferrites. Ferrite crystals were synthesized by a modified coprecipitation route where nucleation and crystal growth conditions were controlled during the reaction of 0.011M Fe(III) and 0.055M[Zn(II) + Mn(II)] solutions under alkaline conditions. When doping, suitable amounts of Gd(III) or Eu(III) salts...
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