Add time:08/08/2019         Source:sciencedirect.com

Spinel type barium zinc ferrite (Zn1−xBaxFe2O4) nanoparticles with compositions of barium (x = 0.01–0.15) were prepared by an auto combustion method using glycine as fuel and nitrates as precursors. The formation mechanisms of these ferrite nanoparticles are briefly discussed. The prepared samples were characterized by powder X-ray Diffraction analysis (XRD) and confirm the formation of pure phase zinc ferrite with cubic structure. The average crystallite size was found to vary from 39.5 nm to 47.6 nm. X-ray Photoelectron Spectroscopy (XPS) was used to analyze the elemental composition and oxidation states of the elements in the ferrite samples. Detailed photoelectron peaks of Zn 2p, Fe 2p, O 1s and Ba 3d with corresponding binding energy are presented in the XPS spectrum. The optical band gap values increased from 2.42 eV to 2.50 eV with increase in barium concentration as determined from UV–Diffuse Reflectance Spectroscopy (DRS) using Tauc relation. The current–voltage (J–V) curve for DSSC based on barium zinc ferrite nanoparticles sensitized with Eosin yellowish dye was characterized by J–V measurements. It exhibited a maximum optimal energy conversion efficiency of around 0.0027% for barium doped zinc ferrite nanoparticles whereas the cell based on the pure zinc ferrite nanoparticles gave efficiency of approximately 0.0014% and enhanced open circuit voltage and current are obtained.

We also recommend Trading Suppliers and Manufacturers of BARIUM IODIDE HEXAHYDRATE (cas 13477-15-1). Pls Click Website Link as below: cas 13477-15-1 suppliers