Low-temperature melt processing of organic-inorganic hybrid films

The thermal properties of semiconducting tin(II) iodide based hybrid perovskites have been modified by tailoring the organic component of the structure, thereby reducing the melting temperature (b) well below the decomposition point (c) for these systems. The more stable melt phase has enabled the first demonstration of crystallographically oriented, melt-processed, hybrid films on flexible Kapton substrates. In addition, a premelting structural transition (a) has been characterized for the perovskite systems using thermal analysis and temperatureprogrammed X-ray diffraction.