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We report organic cation additives in lead iodide solutions as a practical approach for roll-to-roll production of perovskite solar cells. Sequential deposition, which is known to be more reliable than 1 step process, is modified to be even more reliable and suitable in roll-to-roll process. Addition of less than stoichiometric amount of organic cations in PbI2 solution effectively improves processability...
Despite the rapid progress made in the field of perovskite solar cells, their instability remains a major obstacle for commercialization. Here, focus is placed on the stability of CH3NH3PbI3 solar cells on polymer substrates and the understanding of the factors influencing device degradation. A range of storage conditions is used, parameters such as light or temperature are isolated, and their impacts...
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