Issue 1, 2024

Strategies to improve the mechanical robustness of metal halide perovskite solar cells

Abstract

We report on the mechanical properties of high-efficiency perovskite solar cells (PSCs) with different chemical components by measuring the fracture energy (Gc) of films and devices. With the help of both macroscopic and microscopic techniques, we identify the locations where fracture takes place in the devices (either adhesive or cohesive failure) with various material and device structures. We propose strategies that can improve the fracture energy of PSCs based on the measured Gc: the use of ozone-nucleated atomic layer deposition to improve charge transport layer robustness and the use of 2D perovskites and morphology control to improve the perovskite robustness. Our findings offer a pathway to rationally study the mechanical properties of PSCs and enable such cells to be more mechanically robust to reach commercial viability.

Graphical abstract: Strategies to improve the mechanical robustness of metal halide perovskite solar cells

Supplementary files

Article information

Article type
Paper
Submitted
06 Aug 2023
Accepted
27 Nov 2023
First published
04 Dec 2023
This article is Open Access
Creative Commons BY license

Energy Adv., 2024,3, 273-280

Strategies to improve the mechanical robustness of metal halide perovskite solar cells

M. Li, S. Johnson, L. Gil-Escrig, M. Sohmer, C. A. Figueroa Morales, H. Kim, S. Sidhik, A. Mohite, X. Gong, L. Etgar, H. J. Bolink, A. Palmstrom, M. D. McGehee and N. Rolston, Energy Adv., 2024, 3, 273 DOI: 10.1039/D3YA00377A

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