^aDepartment of Physics, GSS, GITAM Deemed to be University, Bangalore-

562163, India

^bDept. of Physics, PVKK Institute of Technology, Anantapur-515001, India

^cCollege of Computer and Information Sciences, Majmaah University,

Al’Majmaah, K.S.A-11952

Aluminum-doped Zinc Titanate (AZT) AlxZn1-xTiO3 ( for x= 0.20,0.40,0.60,0.80) nano- particles are synthesized through low temperature hydrothermal method and their physical properties such as structure, surface, energy gap and dielectric characteristics were investigated using X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), Transmission Electron Microscopy (TEM), UV-visible spectroscopy and impedance analysis. XRD analysis indicated structural transformation of tetragonal phase for samples of x = 0.20 to 0.60 and some secondary phases for x=0.80. It was found that lattice constants ofthe sample decrease with increasing aluminium content.

The morphology of nano-composites, as evidenced by FESEM and TEM imaging, displayed the formation of nano-spheres and nano-rods. The impedance and dielectric modulus analysis for the current samples revealed their dielectric behaviour, microstructure and conduction procedure. However negative dielectric property was seen in nano-composite with x=0.60. All samples with x ranging between 0.2 to 0.8 displayed high ac-electrical conductivity at 1 MHz frequency. These samples are well suitable for charge storage capacitors and as perfect absorbers.