Melting of hybrid organic-inorganic perovskites

Shaw, Bikash Kumar, Hughes, Ashlea R ORCID: 0000-0001-9625-6921, Ducamp, Maxime, Moss, Stephen, Debnath, Anup, Sapnik, Adam F, Thorne, Michael F, McHugh, Lauren N ORCID: 0000-0003-2032-0450, Pugliese, Andrea, Keeble, Dean S
et al (show 8 more authors) (2021) Melting of hybrid organic-inorganic perovskites. NATURE CHEMISTRY, 13 (8). 778-+.

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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<sup>-1</sup> K<sup>-1</sup>), moderate electrical conductivities (10<sup>-3</sup>-10<sup>-5</sup> S m<sup>-1</sup>) and polymer-like thermomechanical properties.

Item Type: Article
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 16 Jun 2021 09:05
Last Modified: 18 Jan 2023 22:34
DOI: 10.1038/s41557-021-00681-7
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