“…It is being shown, nevertheless, that zirconia is also more probable to produce PbI2, hyclate CH3NH3PbI3H2O, and dihydrate (CH3NH3)4PbI62H2O compounds when moisture is present. Since HC(NH2)2 may likewise break down into nitrogen and sym-tryazine in a solution of water [33], it appears that substituting the CH3NH3 cation by this cation fails to result in a boost in humidity resilience [34]. According to ab-initio computational molecular dynamics modeling, CsPbI3 interacts with water atoms more strongly than CH3NH3PbI3, and because of this and its minimal structural distortion, moistureinduced degradation is reduced in this material [35].…”