Whilst Goldschmidt tolerance aspects can semi-quantitatively forecast structural distortion on The premise of steric hindrance in 3D perovskites, it is not easy to use to second perovskites, because the layered segregated constructions in 2nd perovskites enable the incorporation of more substantial natural and organic cations into your inorganic cages26,27,28,29,30. The https://crithitceramics.com/product/fireball/