International Conference

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Author: search.filters.author.Meena PSubject: search.filters.subject.XRD

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    STUDIES ON SYNTHESIS AND CHARACTERIZATION OF CUSNANOPARTICLES
    (PSGR Krishnammal College for Women, Coimbatore, 2018-01-03) Deepika R; Meena P; Mythili A.R
    Copper sulfide nanoparticles which are promising materials with potential applications in solar energy conversion, catalysis, sensing etc., have attracted the interest of researchers in view of their non-toxic nature. In the present study, CuS nanoparticles have been synthesized by the facile Chemical Route method which has received much attention due to the simple operation, low cost, faster reaction rate, high yield, environmental safety, and low energy consumption. The synthesized nanoparticles have been characterized by X-Ray diffraction (XRD), Scanning electron microscopy (SEM) with energy-dispersive X-ray analysis (EDAX) and UV-VIS spectrophotometry.
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    PREPARATION AND CHARACTERIZATION OF ENVIRONMENTALLY SAFE TIN SULFIDE(SNS) NANOPARTICLES
    (PSGR Krishnammal College for Women, Coimbatore, 2018-01-03) Deepika R; Meena P; JosephineVincy P
    Nanoparticles of tinsulfide (SnS), are environmentally safe materials which are important as they are employed in optoelectronic devices.The band gap of SnS which is a binary semiconductor compound is about 1.3 eV, which is close to the optimum value required for the efficient sunlight absorption. SnS layers are used to enhance the efficiency of solar cells. In the present study,SnS nanoparticles have been synthesised by chemical route method. Structural, morphological and optical properties have been investigated with the help of X-ray diffraction technique (XRD), scanning electron microscope (SEM) with energy dispersive X-ray analysis (EDAX) and ultra-violet visible (UV) analysis.
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    EFFECT OF SURFACTANT ON STRUCTURAL, MORPHOLOGICAL, OPTICAL AND ELECTRICAL PROPERTIES OF CUO NANOPARTICLES FOR APPLICATION IN P-N JUNCTION DIODE
    (Bannari Amman Institute of Technology, Sathyamangalam, 2017-08-17) Selleswari D; Meena P; Mangalaraj D; Jeevitha G
    Copper oxide nanomaterials have kindled the interest of researchers in view of their potential applications in electronic devices. In the present work, Copper oxide (CuO) nanoparticles were prepared through the simple hydrothermal method using two different concentrations (0.1 and 0.5 M) of the surfactant (CTAB) and their structural, optical, electrical and diode properties have been analyzed. From the XRD analysis, it was observed that the surfactant reduced the crystallite size of the CuO nanoparticles. It also caused an increase in the optical band gap and absorbance. The SEM analysis showed the strong influence of the surfactant on the structure of the nanoparticles. The presence of Cu and O elements was confirmed from the FT-IR spectrum. The study of the electrical properties revealed that the conductivity increased on using CTAB. The electrical parameters such as ideality factor (n), barrier height (ФB) and series resistance (Rs), and interface properties for the p-Si/CuO/Ag diodes have been analyzed by the I-V method.