Numerical Study of Opto-Electrical Properties of a Mixed Halide Methylammonium Lead Halide (MAPbBr3-nIn; n=0, 1, 2 and 3) Based Perovskite Solar Cell Journal title: Journal of Sustainability for Energy Authors: Kunal Chakraborty, Rajib Saha, Mahua Gupta Choudhury, Samrat Paul Subject(s): Energy, Green & Sustainable Science & Technology