Optical and functional properties of hydrothermally synthesized tetragonal Ba_0.4Cu_0.6−xLa_xTiO₃ (x = 0.2–0.6) nanoparticles

Abstract

Ba 0.4 Cu 0.6−x La x TiO 3 (x=0.2, 0.4 & 0.6) (BCLT) nanoparticles were prepared by hydrothermal method. The x-ray diffraction (XRD) pattern established the existence of tetragonal phases. The nanospheres were observed in the surface morphology of present materials using the transmission electron microscopy (TEM). The optical properties were investigated to confirm the presence of metal oxide bonds as well as the optical band-gap energy of BCLT nanoparticles. The dielectric and impedance parameters were studied as a function of frequency and composition. The Cole-Cole plots were drawn to understand the microstructure and electrical conduction mechanism. In addition, the ferroelectric nature was carried out with the help of polarization versus electric field (P-E) loop tracer. Materials and methodsBa 0.4 Cu 0.6−x La x TiO 3 (x=0.2, 0.4, & 0.6) nanoparticles were synthesized via hydrothermal technique. The flow chart for the preparation of BCLT samples was depicted in figure 1. The starting raw materials of Ba (NO 3 ) 2 .6H 2 O

A review on the origin of nanofibers/nanorods structures and applications

“…Herein, the PLCT, PCLT, BCLF, and ALTBT nanostructures show the complete nanofiber/nanorods at high percentage of La +3 cations, whereas the BCF samples perform the same nature at high percentage of Ba +2 cations of high ionic radii. The similar observations are noticed by Prakash et al [14], in case of BaCuLaTiO 3 nanorods prepared using the hydrothermal method.…”

Effect of pH on Structure, Optical, and Dielectric Properties of BaTiO3 Nanoparticles

“…The lattice constants were found to be a = b = c using the equation a = d hkl (h 2 + k 2 + l 2 ) 0.5 (d hkl is the interplanar distance) and the value is 0.3970 nm. Further, the unit cell volume was calculated using V = a 3 , and the value is noticed as 0.0626 nm 3 .…”

“…[2] It was noticed from the literature that the parent compounds showed different properties as a function of various factors such as temperature, particle size, synthesis method, sintering/calcination process, etc. [3] Besides, the recent reports evidenced that the pH is also a factor for variation DOI: 10.1002/crat.202300022 of different properties. Rama Prasad et al, [4] prepared the copper ferrite nanoparticles at different pH values starting from 9 to 12.…”