2D perovskites [(ZnPc)0.5 MAn-1PbnT3n+1 ] etc. are derived from organic spaces and have shown better stability due to hydrophobic nature of organic spaces. Question is that how these materials can be synthesized?
2D perovskite solar cells is anew calls of solar cells exploiting the higher stability of 2D perovskites. But they need intensive research to increase their photo conversion efficiency. There are a number of review papers dealing with the properties of the two dimentional perovskites and how they they are synthesized.
You may refer to the link to get one of such papers: Article Recent progress on 2D/quasi-2D layered metal halide perovski...