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R. SENGODAN1, B. CHANDAR SHEKAR2,*
Barium strontium titanate nanoparticles were synthesized by the wet chemical method using the starting materials as barium chloride (BaCl2), titanium dioxide (TiO2), strontium carbonate (SrCO3) and oxalic acid sintered at 900˚C. The composition of the particle was identified by EDS. The crystalline structure investigated by X-ray diffraction show that the nanoparticles exhibit a tetragonal BST phase. Rod like morphology was observed by scanning electron microscope (SEM). TEM images revealed that the BST nanoparticles are rod like morphology with diameter of about 50 – 100 nm. FTIR measurement showed the existence of Ba-Sr-Ti-O bond in the nanoparticles. Optical properties were studied by using UV- Visible spectrophotometer. The band gap of the particles was found to be 2.73 eV. It was found to be direct allowed transition. The absorption co-efficient (α) and extinction co-efficient (K) were also evaluated ad reported in this paper..
Barium strontium titanate, XRD, TEM, SEM, FTIR, UV – Visible.
R. SENGODAN, B. CHANDAR SHEKAR, Characterization of barium strontium titanate (BST) single crystal nanorods prepared by wet chemical method, Optoelectronics and Advanced Materials - Rapid Communications, 8, 7-8, July-August 2014, pp.617-621 (2014).
Submitted at: Dec. 3, 2013
Accepted at: July 10, 2014
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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