What Remains Unexplained about the Properties of Halide Perovskites?

David A Egger; Achintya Bera; David Cahen; Gary Hodes; Thomas Kirchartz; Leeor Kronik; Robert Lovrincic; Andrew M Rappe; David R Reichman; Omer Yaffe

doi:10.1002/adma.201800691

What Remains Unexplained about the Properties of Halide Perovskites?

Adv Mater. 2018 May;30(20):e1800691. doi: 10.1002/adma.201800691. Epub 2018 Mar 22.

Authors

David A Egger¹, Achintya Bera², David Cahen², Gary Hodes², Thomas Kirchartz^{3

4}, Leeor Kronik², Robert Lovrincic^{5

6}, Andrew M Rappe⁷, David R Reichman⁸, Omer Yaffe²

Affiliations

¹ Institute of Theoretical Physics, University of Regensburg, 93040, Regensburg, Germany.
² Department of Materials and Interfaces, Weizmann Institute of Science, Rehovoth, 76100, Israel.
³ IEK5-Photovoltaics, Forschungszentrum Jülich, 52425, Jülich, Germany.
⁴ Faculty of Engineering and CENIDE, University of Duisburg-Essen, 47057, Duisburg, Germany.
⁵ InnovationLab, 69115, Heidelberg, Germany.
⁶ Institute for High Frequency Technology, TU Braunschweig, 38106, Braunschweig, Germany.
⁷ Department of Chemistry, University of Pennsylvania, Pennsylvania, PA, 19104-6323, USA.
⁸ Department of Chemistry, Columbia University, New York, NY, 10027, USA.

PMID: 29569287
DOI: 10.1002/adma.201800691

Abstract

The notion that halide perovskite crystals (ABX₃ , where X is a halide) exhibit unique structural and optoelectronic behavior deserves serious scrutiny. After decades of steady and half a decade of intense research, the question which attributes of these materials are unusual, is discussed, with an emphasis on the identification of the most important remaining issues. The goal is to stimulate discussion rather than to merely present a community consensus.

Keywords: halide perovskites; optoelectronic properties; solar cells.

Publication types

Review