Open AccessDielectric spectroscopy of aluminum oxide (γ-Al2O3)
Author(s) -
M.M. Abdullah,
AUTHOR_ID
Publication year - 2021
Publication title -
maǧallaẗ al-kuwayt li-l-ʿulūm
Language(s) - English
Resource type - Journals
eISSN - 2307-4116
pISSN - 2307-4108
DOI - 10.48129/kjs.12885
Subject(s) - materials science , dielectric , dielectric spectroscopy , impurity , crystallite , fourier transform infrared spectroscopy , oxide , analytical chemistry (journal) , aluminum oxide , relaxation (psychology) , high κ dielectric , spectroscopy , aluminium , composite material , chemical engineering , optoelectronics , chemistry , metallurgy , psychology , social psychology , physics , organic chemistry , electrode , quantum mechanics , engineering , electrochemistry , chromatography
Aluminum oxide (Al2O3) are continuously demonstrating the functional characteristics in devices. The physiochemical properties of hydrothermally as-grown Aluminum oxide (Al2O3) have been investigated in this research article. The as-prepared material was confirmed as γ- phase formation of Al2O3. The average crystallite size was found ∼ 78 nm, whereas the particles were found in nano scale too. Moreover, the absence of impurity in EDS analysis, and the presence of the bending vibrations of Al-O-Al and Al-O band in FTIR characterization further confirmed the absence of impurity in the material. Evaluated dielectric properties such as a relatively high dielectric constant, and low dielectric loss indicated the good optical quality of γ- Al2O3. Impedance and modulus spectroscopic studies showed the non-Debye type relaxation in γ- Al2O3 with an average relaxation time of 5.8 μs. Overall, the dielectric spectroscopy analysis of γ- Al2O3 indicates the promising applications of γ- Al2O3 in devices as dielectrics.