Third order nonlinear optical properties of organometal halide perovskite by means of the Z-scan technique

- New approach for fabrication of quality thin film of perovskites was demonstrated.
- Nonlinear optical properties were investigated using a Z-scan technique.
- Nonlinear optical parameters (β, n2, γ and χ(3)) of the perovskites were estimated.
- CH3NH3PbBr3 perovskite has large nonlinear optical properties.