Structural and Thermal Properties of Iron Doped SnSe Nanoparticles

-Iron doped Tin Selenide nanoparticles have been prepared by aqueous solution method in double distilled water at room temperature. All the chemicals used for this were of Analytical Reagent grade and of 99.999 % purity. Structural confirmation and particle size estimation of prepared SnSeFe0.5 Nanoparticles had been reported from Xray diffractogram obtained by CuKα radiation of wavelength 1.540 nm. Compositional or elemental analysis of this compound was done using energy dispersive analysis of Xrays (EDAX). Transmisison Electron Micrographs (using PHILIPS – TECNAI) for as synthesized nanopaticles had been displayed. Thermal characterization of as synthesized nanoparticles is performed by thermoanalytical techniques, viz. TGA and DTA. Thermal analysis experiments were carried out by Rigaku thermobalance at constant heating rate of 10 °C/ min in air from room temperature to 900 °C. Stage wise weight loss event carried out by TG / DTA set up had been reported for all these Nanoparticles. The effect of iron doping level of concentration in SnSe Nanoparticles on DTA peak position had been discussed. The objective of this study is to determine activation energy and other kinetic parameters of prepared compound. Broido and CoatsRedfern (CR) models are used to evaluate different kinetic parameters viz. activation energy, entropy, enthalpy, Gibbs mean free energy and they were found to have good correlation coefficient. Keywords-Aqueous solution method, EDAX, TEM, Broido and CoatsRedfern (CR) models for thermal analysis.