Ameliorating and tailoring the morphological, structural, and dielectric features of Si₃N₄/CeO₂ futuristic nanocomposites doped PEO for nanoelectronic and nanodielectric applications

The present study objects to enhance the morphological, structural and dielectric properties of silicon nitride(Si₃N₄) and cerium oxide(CeO₂) nanocomposites doped polyethylene oxide(PEO) as promising nanomaterials to be useful in a variety of nanoelectronics and nanodielectric applications such as pressure sensors, capacitor, and others applications. The PEO/Si₃N₄/CeO₂ nanocomposites have been fabricated via casting process. The PEO/Si₃N₄/CeO₂ nanocomposites have remarkable characteristics compared with other nanocomposites including excellent dielectric characteristics, inexpensive, superior chemical, and physical properties. The structural properties of PEO/Si₃N₄/CeO₂ nanocomposites included FTIR, FE-SEM, and optical microscope(OM). The dielectric properties were examined at frequency range from 100 Hz to 5 MHz. The results of dielectric properties showed to improve in the dielectric parameters of PEO with the increase in Si₃N₄/CeO₂ nanocomposites content. The dielectric properties of PEO/Si₃N₄/CeO₂ nanocomposites were altered with rising frequency. The dielectric constant and electrical conductivity enhanced to about 68.2% and 80.7%, respectively, when the content of Si₃N₄/CeO₂ nanocomposites reached 7.6 wt%. The PEO/Si₃N₄/CeO₂ nanocomposites have been applied for promising pressure sensors applications. The obtained results demonstrated to enhance the dielectric parameters of PEO/Si₃N₄/CeO₂ nanocomposites with rising applied pressure. Finally, the results of studied properties indicated to the PEO/Si₃N₄/CeO₂ nanocomposites are promising hybrid nanomaterials to employ in various nanoelectronics and nanodielectric applications.