Affiliation:
1. CNRS, Ecole Polytechnique, ENSCP Institut Photovoltaïque d’Île de France (IPVF) UMR 9006 Palaiseau 91120 France
2. Department of Physics of Complex Systems Weizmann Institute of Science Rehovot 7610001 Israel
3. Department of Molecular Chemistry and Materials Science Weizmann Institute of Science Rehovot 7610001 Israel
4. Department of Chemical Research Support Israel Weizmann Institute of Science Rehovot 7610001 Israel
Abstract
AbstractSelf‐healing (SH) of (opto)electronic material damage can have a huge impact on resource sustainability. The rising interest in halide perovskite (HaP) compounds over the past decade is due to their excellent semiconducting properties for crystals and films, even if made by low‐temperature solution‐based processing. Direct proof of self‐healing in Pb‐based HaPs is demonstrated through photoluminescence recovery from photodamage, fracture healing and their use as high‐energy radiation and particle detectors. Here, the question of how to find additional semiconducting materials exhibiting SH, in particular lead‐free ones is addressed. Applying a data‐mining approach to identify semiconductors with favorable mechanical and thermal properties, for which Pb HaPs are clear outliers, it is found that the Cs2AuIAuIIIX6, (X = I, Br, Cl) family, which is synthesized and tested for SH. This is the first demonstration of self‐healing of Pb‐free inorganic HaP thin films, by photoluminescence recovery.
Funder
HORIZON EUROPE Marie Sklodowska-Curie Actions
Subject
Electrochemistry,Condensed Matter Physics,Biomaterials,Electronic, Optical and Magnetic Materials