Keywords
formamidinium
hybrid perovskites
melt processing
phase diagram
polyiodides
supersolidus
Abstract
It has been demonstrated that formamidinium–cesium polyiodides are facile reagents for converting metallic lead into perovskite at temperatures of 20–90 °C. For the first time, a tentative phase diagram of the [HC(NH2)2]I–I2 binary system was proposed, and sub- and supersolidus phase relations in the [HC(NH2)2]I–CsI–I2 ternary system were discussed.
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