Fig. 1: Structural analyses of CsMnBr3 and FACs-based perovskite with CsMnBr3 integration.
From: Interfacial ferroelectricity unlocks stable formamidinium-based perovskites
a XRD patterns for synthesized CsMnBr3 NCs (light blue line) and standard CsMnBr3 perovskite (red line, PDF#26-0387). The inset shows photographs of the CsMnBr3 NCs solution under ambient light and ultraviolet illumination. b Phase and amplitude switching spectroscopy loops for a CsMnBr3 film, demonstrating ferroelectric-like hysteresis. c FA+, Pb2+, Mn2+ distribution throughout IF-FACs perovskite, a. u., arbitrary units. d SEM images for FACs and IF-FACs perovskite films, scale represents 1 μm. e TEM morphologies for the IF-FACs perovskite crystal, scale represents 20 nm, the insert images are HRTEM lattice fringes. f Phase mapping images of FACs- and IF-FACs- based films, scale represents 600 nm.
