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Browsing by Subject X-ray diffraction

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  • 1-s2.0-S2468217918301163-main.pdf.jpg
  • Article

  • Effect of the ceria dopant on the structural and dielectric properties of ZnO semiconductors

    • Authors: Kumar, B. Rajesh; Hymavathi, B.; Rao, T. S. (2018)

  • ZnO doped with different concentrations (2, 4, 6, 8 and 10%) of ceria was synthesized by the conventional solidestate reaction method. X-ray diffraction spectra confirm that all the samples have a hexagonal structure. The structural properties of the samples were studied from X-ray diffraction data. The surface morphology and elemental composition of the ceria doped ZnO samples were characterized by scanning electron microscopy and energy dispersive X-ray spectroscopy. The variation of the dielectric constant, the dielectric loss and theacconductivity as functions of frequency in the range of 100 Hze1 MHz for the as-prepared material were studied at room temperature by using impedance...
  • Elemental-structural-and-optical-properties-of-nanocrystalline-Zn1-xCuxSe-films-deposited-by-close-spaced-sublimation-technique_2017_Journal-of-Scienc.pdf.jpg
  • Article

  • Elemental, structural and optical properties of nanocrystalline Zn1-xCuxSe films deposited by close spaced sublimation technique

    • Authors: - (2017)

  • The elemental composition, film thickness and concentration depth profiles of as-deposited and annealed Zn1-xCuxSe films were studied by the Rutherford back scattering spectrometer (RBS) technique. The films were deposited on glass substrates by close spaced sublimation (CSS) technique. As-deposited films of about 250-300 nm thickness were then annealed in air at temperatures of 200C and 400C for 1 h. Structural characterization including crystal structure, crystal orientation, stacking fault energy (ҮSFE) and surface morphology were carried out by using X-ray diffraction (XRD) and atomic force mi-croscopy (AFM). XRD studies revealed that the fabricatedfilms are polycrystalline with a...
  • A-novel-rhombohedron-like-nickel-ferrite-nanostructure-Microwave-combustion-synthesis-structural-characterization-and-magnetic-properties_2016_Journal.pdf.jpg
  • Article

  • A novel rhombohedron-like nickel ferrite nanostructure: Microwave combustion synthesis, structural characterization and magnetic properties

    • Authors: G. Suresh Kumar; J. Akbar; R. Govindan; E.K. Girija; M. Kanagaraj (2016)

  • Research on nickel ferrite nanostructures has drawn a great interest because of its inherent chemical, physical and electronic properties. In this study, we have synthesized rhombohedronelike nickel ferrite nanostructure by a rapid microwave assisted combustion method using ethylenediamminetetraacetic acid as a chelating agent. X-ray diffraction, Fourier transform infrared spectrometer, transmission elec-tron microscope and energy dispersive X-ray microanalyser were used to characterize the prepared sample. The magnetic behaviour was analysed by means offield dependent magnetization measurement which indicates that the prepared sample exhibits a soft ferromagnetic nature with sat...
  • Structural-impedance-dielectric-and-modulus-analysis-of-LiNi1-x-y-0-02Mg0-02CoxZnyO2-cathode-materials-for-lithium-ion-batteries_2017_Journal-of-Scien.pdf.jpg
  • Article

  • Structural, impedance, dielectric and modulus analysis of LiNi1-x-y-0.02Mg0.02CoxZnyO2 cathode materials for lithium-ion batteries

    • Authors: Murali, N.; Margarette, S.J.; Kondala Rao, V.; Veeraiah, V. (2017)

  • Mg, Co and Zn co-substituted layer-structured cathode materials LiNiCoxZnyMg0.02O2 (x - y - 0.0, 0.02 and 0.04) were prepared by a solid-state reaction method. The materials were systematically charac-terized by X-ray diffraction (XRD),field effect scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FT-IR), and electrical impedance spectroscopy (EIS) techniques. XRD analyses revealed the formation of a rhombohedral structure in the prepared materials with a typicala-NaFeO2 layered structure within R3mspace group. The grain size was determined by FESEM in the range from 3.19 to 3.85mm for all materials synthesized. The site of the local cation (LieO) and of t...

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Browsing by Subject X-ray diffraction

Jump to: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
or enter first few letters:  
Showing results 1 to 4 of 4
  • 1-s2.0-S2468217918301163-main.pdf.jpg
  • Article

  • Effect of the ceria dopant on the structural and dielectric properties of ZnO semiconductors

    • Authors: Kumar, B. Rajesh; Hymavathi, B.; Rao, T. S. (2018)

  • ZnO doped with different concentrations (2, 4, 6, 8 and 10%) of ceria was synthesized by the conventional solidestate reaction method. X-ray diffraction spectra confirm that all the samples have a hexagonal structure. The structural properties of the samples were studied from X-ray diffraction data. The surface morphology and elemental composition of the ceria doped ZnO samples were characterized by scanning electron microscopy and energy dispersive X-ray spectroscopy. The variation of the dielectric constant, the dielectric loss and theacconductivity as functions of frequency in the range of 100 Hze1 MHz for the as-prepared material were studied at room temperature by using impedance...
  • Elemental-structural-and-optical-properties-of-nanocrystalline-Zn1-xCuxSe-films-deposited-by-close-spaced-sublimation-technique_2017_Journal-of-Scienc.pdf.jpg
  • Article

  • Elemental, structural and optical properties of nanocrystalline Zn1-xCuxSe films deposited by close spaced sublimation technique

    • Authors: - (2017)

  • The elemental composition, film thickness and concentration depth profiles of as-deposited and annealed Zn1-xCuxSe films were studied by the Rutherford back scattering spectrometer (RBS) technique. The films were deposited on glass substrates by close spaced sublimation (CSS) technique. As-deposited films of about 250-300 nm thickness were then annealed in air at temperatures of 200C and 400C for 1 h. Structural characterization including crystal structure, crystal orientation, stacking fault energy (ҮSFE) and surface morphology were carried out by using X-ray diffraction (XRD) and atomic force mi-croscopy (AFM). XRD studies revealed that the fabricatedfilms are polycrystalline with a...
  • A-novel-rhombohedron-like-nickel-ferrite-nanostructure-Microwave-combustion-synthesis-structural-characterization-and-magnetic-properties_2016_Journal.pdf.jpg
  • Article

  • A novel rhombohedron-like nickel ferrite nanostructure: Microwave combustion synthesis, structural characterization and magnetic properties

    • Authors: G. Suresh Kumar; J. Akbar; R. Govindan; E.K. Girija; M. Kanagaraj (2016)

  • Research on nickel ferrite nanostructures has drawn a great interest because of its inherent chemical, physical and electronic properties. In this study, we have synthesized rhombohedronelike nickel ferrite nanostructure by a rapid microwave assisted combustion method using ethylenediamminetetraacetic acid as a chelating agent. X-ray diffraction, Fourier transform infrared spectrometer, transmission elec-tron microscope and energy dispersive X-ray microanalyser were used to characterize the prepared sample. The magnetic behaviour was analysed by means offield dependent magnetization measurement which indicates that the prepared sample exhibits a soft ferromagnetic nature with sat...
  • Structural-impedance-dielectric-and-modulus-analysis-of-LiNi1-x-y-0-02Mg0-02CoxZnyO2-cathode-materials-for-lithium-ion-batteries_2017_Journal-of-Scien.pdf.jpg
  • Article

  • Structural, impedance, dielectric and modulus analysis of LiNi1-x-y-0.02Mg0.02CoxZnyO2 cathode materials for lithium-ion batteries

    • Authors: Murali, N.; Margarette, S.J.; Kondala Rao, V.; Veeraiah, V. (2017)

  • Mg, Co and Zn co-substituted layer-structured cathode materials LiNiCoxZnyMg0.02O2 (x - y - 0.0, 0.02 and 0.04) were prepared by a solid-state reaction method. The materials were systematically charac-terized by X-ray diffraction (XRD),field effect scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FT-IR), and electrical impedance spectroscopy (EIS) techniques. XRD analyses revealed the formation of a rhombohedral structure in the prepared materials with a typicala-NaFeO2 layered structure within R3mspace group. The grain size was determined by FESEM in the range from 3.19 to 3.85mm for all materials synthesized. The site of the local cation (LieO) and of t...