Evaluation the effect of temperature on synthesis and optical properties of nano structured Sn-based perovskite with the as a sensitizer for solar cell application

In this paper, the effect of heating treatment in synthesis of perovskite nanostructure is investigated. The results of XRD shows that the perovskite annealed at 120ºC results in the highest purification of CH3NH3SnIxCl3-x crystal structures. Moreover the sample annealed at mentioned temperature posses the highest light absorption. Finally, based on EDX analysis I atoms aren’t as active as Cl for entrance inti the crystal network. Therefore the crystal structure of synthesized sample is CH3NH3Sn 0.8Cl2.2.