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Article Dans Une Revue Nature Chemistry Année : 2021

Melting of hybrid organic–inorganic perovskites

Ashlea R Hughes
  • Fonction : Auteur
Stephen Moss
Anup Debnath
  • Fonction : Auteur
Andrea Pugliese
  • Fonction : Auteur
Dean S Keeble
  • Fonction : Auteur
Philip Chater
Shyamal K Saha
  • Fonction : Auteur
David A Keen
  • Fonction : Auteur
Frédéric Blanc

Résumé

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.

Domaines

Matériaux
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Dates et versions

hal-03223292 , version 1 (10-05-2021)

Identifiants

Citer

Bikash Kumar Shaw, Ashlea R Hughes, Maxime Ducamp, Stephen Moss, Anup Debnath, et al.. Melting of hybrid organic–inorganic perovskites. Nature Chemistry, 2021, 13, pp.778-785. ⟨10.1038/s41557-021-00681-7⟩. ⟨hal-03223292⟩
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