Nanostructural and electrical properties of LA(0.5)SR(0.5)CoO(3)

作者：Bahari A^*; Ramzannezhad A; Shajari D; Najafi H

来源：International Journal of Modern Physics B, 2017, 31(4): 1750015.

DOI：10.1142/S0217979217500151

• Nanostructure
• thin film
• nanomaterial
• LSCO
• sol-gel method

A group of ABO(3) 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 solgel method and studied their nano structural and electrical properties with using the scanning electron microscopy (SEM), energy dispersive X-ray (EDX), Current densityvoltage (JV) and Fourier transform infrared spectroscopy (FTIR) techniques. We synthesized 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 favorable carrier mobility (similar to 1.7x10(-2) cm(2)v(-2)s(-1)) and dielectric constant (16) exhibits a variety of interesting physical properties which include ferroelectric, dielectric, pyroelectric and piezoelectric behavior.

• 出版日期2017-2-10