MAPbI₃

MAPb_0.75Sn_0.25I₃

MAPb_0.5Sn_0.5I₃

MAPb_0.25Sn_0.75I₃

MASnI₃

Goldschmidt Tolerance Factor

t = 0.889

t = 0.895

t = 0.902

t = 0.909

t = 0.915