Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstrasse 4, D-85748 Garching, Germany.
Multifunctional Materials & Composites (MMC) Laboratory, Department of Engineering Science, University of Oxford, Oxford OX1 3PJ, UK.
Chem Commun (Camb). 2019 Apr 7;55(27):3911-3914. doi: 10.1039/c9cc00580c. Epub 2019 Mar 14.
The metal-free hybrid organic-inorganic perovskite MDABCOI (with MDABCO = N-methyl-1,4-diazabicyclo[2.2.2]octane) was recently discovered to exhibit an excellent ferroelectric performance, challenging established ceramic ferroelectrics. We here probe the mechanical properties of MDABCOI by combining high pressure single crystal X-ray diffraction and nanoindentation, underlining the exceptional role and opportunities that come with the use of sustainable, metal-free perovskite ferroelectrics.
