Mechanical Integrity of Solution-Processed Perovskite Solar Cells

The fracture of a variety of solution-processed organometal trihalide perovskite solar cells and isolated perovskite layers is reported. The study covers cells in which the perovskites, including planar and mesoporous layers, are deposited by an array of solution-state deposition techniques and feature a wide variety of ancillary organic and inorganic charge transport layers. Understanding the influence of materials selection and fabrication techniques on mechanical stability is an important step towards realizing mechanically robust perovskite cells.