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Ali Bahari

Ali Bahari

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId:
HIndex:
Faculty: Science
Address:
Phone: 9112537702

Research

Title
SYNTHESIS AND STRUCTURAL PROPERTIES OF LA0.5SR0.5COO3
Type
Presentation
Keywords
Nanostructure; Thin film; Nanomaterial; LSCO; Sol-gel method
Year
2016
Researchers Ali Bahari ، Daryush Shahjari ، Ali Ramzannezhad ، Hamed Najafi

Abstract

A group of ABO3 perovskite-type oxides is currently under intensive studies for their potential as chemical sensing, ferroelectric memories, gas separation and computer devices. This group includes LaxSr1-xCoO3 (LSCO). In the present work, we have synthesized LSCO samples by using the sol-gel method and studied their Nano structural and electrical properties with using the SEM (scanning electron microscopy), EDX (energy dispersive Xray), Current density-voltage (J-V) and FTIR (Fourier transform infrared spectroscopy) techniques. We could synthesize nanoparticles with diameters between 50 and 100 nm by calcination of the pulverized gel powders, and then studied its structure. The band gap characteristics of the La0.5Sr0.5CoO3 structure were also analyzed. The obtained results show that La0.5Sr0.5CoO3 with high carrier mobility (~1.7× 10-2 cm2 v-2 s-1), higher dielectric constant (16) exhibits a variety of interesting physical properties which include ferroelectric, dielectric, pyroelectric and piezoelectric behavior.