Copper substituted methyl ammonium lead bromide grown using Non-Aqueous emulsion based synthesis technique

•Synthesized Cu- substituted MAPb1-xCuxBr3 Nano-particles using a simple non-aqueous synthesis technique under ambient conditions.•X-ray diffraction prove that the Nano-particles are grown without any secondary impurity phases.•The optical bandgap vary from 2.76 eV to 2.43 eV as Copper substitution increases.