Challenge:

Regenerative materials are characterized by a dynamically degrading and healing during normal operation conditions and rest. Halide-Perovskite – a group of promising opto-electronic materials (e.g., for photovoltaics, hard radiation detection) – show self-healing capabilities on one hand, but also degradation during regular operation conditions (e.g., under the sun in solar cells).

Mission :

Our goal is to understand how keep the structure intact and operational  despite the constant degradation it undergoes, using its self-healing properties. Thinking out of the box towards new paradigms of material regenerative functionalization,  we will develop strategies for keeping degradation products as close as possible to their degradation origin, and identify pathways of how one can heal and regenerate the broken material into its original form. We will focus on halide-perovskites a use-case of such materials and study their degradation and regeneration and the impact of their micro- and local-strucutre on these processes.

 Related Publications: 

[1] Self-Healing Inside APbBr₃ Halide Perovskite Crystals

Ceratti, D. R., Rakita, Y., Cremonesi, L., Tenne, R., Kalchenko, V., Elbaum, M., Oron, D., Potenza, M. A. C., Hodes, G. & Cahen, D., 8 Mar 2018, In: Advanced Materials. 30, 10, 1706273.

[2] The pursuit of stability in halide perovskites: The monovalent cation and the key for surface and bulk self-healing

Ceratti, D. R., Cohen, A. V., Tenne, R., Rakita, Y., Snarski, L., Jasti, N. P., Cremonesi, L., Cohen, R., Weitman, M., Rosenhek-Goldian, I., Kaplan-Ashiri, I., Bendikov, T., Kalchenko, V., Elbaum, M., Potenza, M. A. C., Kronik, L., Hodes, G. & Cahen, D., 1 May 2021, In: Materials Horizons. 8, 5, p. 1570-1586 17 p.