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access icon free Synthesis and investigation of dielectric properties of nanoceramic composite material for microwave applications

This Letter reports the synthesis of nanoceramic composite ZnAl2O4TiO2 by using a cost-effective and straight forward sol–gel route. X-ray diffraction (XRD) showed the ZnAl2O4 cubic structure along with the mixed anatase- and rutile-phases of TiO2. Rietveld refinement is performed using XRD pattern to study the structural parameters. Raman investigation endorsed the corresponding vibration peaks of TiO2 and ZnO. Field-emission scanning electron microscopy evidenced the agglomerated spherical nanoparticles. Energy-dispersive spectroscopy analysis demonstrated the elementary peaks of Zn, Al, and Ti at 4.5, 1.5, and 1 eV, respectively. LCR measurement revealed the decreased dielectric permittivity with the rise in frequency and temperature. This dielectric characteristic is attributed to the dipole movement of the charge carriers. Furthermore, the authors present the investigation of the conductivity and impedance of the prepared dielectric ceramic material.

Inspec keywords: sol-gel processing; titanium compounds; crystal structure; permittivity; scanning electron microscopy; zinc compounds; aluminium compounds; nanoparticles; nanofabrication; Raman spectra; X-ray diffraction; X-ray chemical analysis; II-VI semiconductors; semiconductor growth; field emission scanning electron microscopy; ceramics

Other keywords: field-emission scanning electron microscopy; ZnO; microwave applications; XRD pattern; TiO2; dielectric ceramic material; energy-dispersive spectroscopy analysis; LCR measurement; Raman spectra; charge carriers; nanoparticles; structural parameters; sol–gel route; ZnAl2O4TiO2; dielectric permittivity; nanoceramic composite material

Subjects: Optical properties of composite materials (thin films, low-dimensional and nanoscale structures); Infrared and Raman spectra in composite materials; Dielectric permittivity; Nanometre-scale semiconductor fabrication technology; Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials; Electromagnetic radiation spectrometry (chemical analysis); Oxide and ferrite semiconductors; Microstructure; Charge carriers: generation, recombination, lifetime, and trapping (semiconductors/insulators); Deposition from liquid phases; Crystal structure of specific inorganic compounds; Preparation of ceramics and refractories; Other methods of nanofabrication; Deposition from liquid phases (melts and solutions); Ceramics and refractories (engineering materials science); II-VI and III-V semiconductors; Electrical properties of composite materials (thin films, low-dimensional and nanoscale structures)

References

    1. 1)
    2. 2)
    3. 3)
    4. 4)
      • 12. Jalal, W.N.W., Abdullah, H., Zulfakar, M.S.: ‘Characterization and dielectric properties of novel dielectric ceramics CaxZn(1−x)Al2O4 for GPS patch antennas’, Int. J. Appl. Ceram. Technol., 2013, 12, pp. 111.
    5. 5)
    6. 6)
    7. 7)
    8. 8)
    9. 9)
      • 23. Abdalla, Z.E.A., Kumar, M., Hassan, I., et al: ‘An improvised method for the synthesis of ZnAl2O4/ZnO nanocomposite and its use as a photo catalyst’, J. Mater. Sci., Mater. Electron., 2018, 29, pp. 18.
    10. 10)
    11. 11)
    12. 12)
    13. 13)
    14. 14)
      • 24. Wang, S.-F., Sun, G.-Z., Fang, L.-M., et al: ‘A comparative study of ZnAl2O4 nanoparticles synthesized from different aluminum salts for use as fluorescence materials’, Sci. Rep., 2015, 5, (1), pp. 112.
    15. 15)
    16. 16)
    17. 17)
    18. 18)
    19. 19)
    20. 20)
    21. 21)
    22. 22)
    23. 23)
    24. 24)
    25. 25)
      • 21. Sahib, A.K.S.K.A, Suganthi, M., Sivabharathy, M., et al: ‘Synthesis of double lanthanide doped nano ferrite meta material for microstrip patch antenna application’, Int. J. ChemTech Res. CODEN (USA), IJCRGG, 2014, 6, (11), pp. 46154624.
    26. 26)
      • 20. Raja, K., John Pragasam, D., Naidu, V.: ‘Synthesis of lanthanum doped magnesium ferrite as jointed substrate material to design and develop micro strip patch antenna for ISM band application’, IOSR J. Mech. Civ. Eng., 2014, 3, pp. 5964.
    27. 27)
    28. 28)
    29. 29)
    30. 30)
    31. 31)
    32. 32)
    33. 33)
      • 32. Castrejón-Sánchez, V.H., Camps, E., Camacho-López, M.: ‘Quantification of phase content in TiO2 thin films by Raman spectroscopy’, Superf. Vacío, 2014, 27, (3), pp. 8892.
    34. 34)
    35. 35)
http://iet.metastore.ingenta.com/content/journals/10.1049/mnl.2020.0266
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