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Melting of hybrid organic–inorganic perovskites

DOI: 10.1038/s41557-021-00681-7 DOI Help

Authors: Bikash Kumar Shaw (University of Cambridge) , Ashlea R. Hughes (University of Liverpool) , Maxime Ducamp (Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris) , Stephen Moss (University of Liverpool) , Anup Debnath (Indian Association for the Cultivation of Science) , Adam F. Sapnik (University of Cambridge) , Michael F. Thorne (University of Cambridge) , Lauren N. Mchugh (University of Cambridge) , Andrea Pugliese (University of Liverpool) , Dean S. Keeble (Diamond Light Source) , Philip Chater (Diamond Light Source) , Juan M. Bermudez-Garcia (University of Cambridge; University of A Coruna) , Xavier Moya (University of Cambridge) , Shyamal K. Saha (Indian Association for the Cultivation of Science) , David A. Keen (ISIS Facility) , François-Xavier Coudert (Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris) , Frédéric Blanc (University of Liverpool) , Thomas Bennett (University of Cambridge)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Nature Chemistry , VOL 119

State: Published (Approved)
Published: May 2021
Diamond Proposal Number(s): 20038

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.

Journal Keywords: Metal–organic frameworks; Organic–inorganic nanostructures; Solid-state chemistry

Subject Areas: Materials, Chemistry

Instruments: I15-1-X-ray Pair Distribution Function (XPDF)

Added On: 14/05/2021 10:03

Discipline Tags:

Chemistry Materials Science Metal-Organic Frameworks Inorganic Chemistry Organic Chemistry Metallurgy Organometallic Chemistry

Technical Tags:

Scattering Total Scattering