“…1,26,27 Compared with bulk counterpart, nanosized perovskites exhibit a series of advantages: for the fabrication of thin films and flexible devices, PNMs display a high processability; 28,29 for catalysis, PNMs feature rich and modulatable facets and active sites; 30,31 besides, benefiting from the small-size effect and quantum effect, PNMs are endowed with outstanding photo-electro-magnetic properties. [32][33][34][35][36][37][38] All these new characteristics help to enrich the performances of perovskites and broaden their applications.…”