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Melting of hybrid organic–inorganic perovskites

Abstract : Several organic–inorganic hybrid materials from the metal–organic framework (MOF) family have been shown to form stable liquids at high temperatures. Quenching then results in the formation of melt-quenched MOF glasses that retain the three-dimensional coordination bonding of the crystalline phase. These hybrid glasses have intriguing properties and could find practical applications, yet the melt-quench phenomenon has so far remained limited to a few MOF structures. Here we turn to hybrid organic–inorganic perovskites—which occupy a prominent position within materials chemistry owing to their functional properties such as ion transport, photoconductivity, ferroelectricity and multiferroicity—and show that a series of dicyanamide-based hybrid organic–inorganic perovskites undergo melting. Our combined experimental–computational approach demonstrates that, on quenching, they form glasses that largely retain their solid-state inorganic–organic connectivity. The resulting materials show very low thermal conductivities (~0.2 W m−1 K−1), moderate electrical conductivities (10−3–10−5 S m−1) and polymer-like thermomechanical properties.
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Contributor : François-Xavier Coudert <>
Submitted on : Monday, May 10, 2021 - 6:11:17 PM
Last modification on : Tuesday, May 11, 2021 - 3:31:35 AM


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Bikash Kumar Shaw, Ashlea Hughes, Maxime Ducamp, Stephen Moss, Anup Debnath, et al.. Melting of hybrid organic–inorganic perovskites. Nature Chemistry, Nature Publishing Group, 2021, ⟨10.1038/s41557-021-00681-7⟩. ⟨hal-03223292⟩



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