Emergence of hidden phases of methylammonium lead-iodide (CH3NH3PbI) upon compression

Authors: José A. Flores-Livas1*, Daniele Tomerini1, Maximilian Amsler2, Ariadni Boziki3, Ursula Rothlisberger3, Stefan Goedecker1

  1. Department of Physics, Universität Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
  2. Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853, USA
  3. Laboratory of Computational Chemistry and Biochemistry, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Féderale de Lausanne, CH-1015 Lausanne, Switzerland
  • Corresponding author email: jflores.livas@gmail.com

DOI10.24435/materialscloud:2019.0003/v1 (version v1, submitted on 23 January 2019)

How to cite this entry

José A. Flores-Livas, Daniele Tomerini, Maximilian Amsler, Ariadni Boziki, Ursula Rothlisberger, Stefan Goedecker, Emergence of hidden phases of methylammonium lead-iodide (CH3NH3PbI) upon compression, Materials Cloud Archive (2019), doi: 10.24435/materialscloud:2019.0003/v1.

Description

We perform a thorough structural search with the minima hopping method (MHM) to explore low-energy structures of methylammonium lead iodide. By combining the MHM with a forcefield, we efficiently screen vast portions of the configurational space with large simulation cells containing up to 96 atoms. Our search reveals two structures of methylammonium iodide perovskite (MAPI) that are substantially lower in energy than the well-studied experimentally observed low-temperature orthorhombic phase. The data set containing approximately ~180,000 crystal structures is provided.

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Files

File name Size Description
MAPI_Perovskites.tar.gz
MD5MD5: ef2379ac53983d838650fddc370141c5
607.7 MiB This file contains the data-set of structures generated for MAPI using minima hopping method with force field
README.txt
MD5MD5: a762e2519315c899cd95ffc04d487d46
458 Bytes Details on the calculations and how to manipulate the structures can be found here

License

Files and data are licensed under the terms of the following license: Creative Commons Attribution 4.0 International.

Keywords

MAPI Perovskites Structure prediction VASP SCAN functional Minima hopping method Force field GULP

Version history

23 January 2019 [This version]