Timeline for Successful Commercialization of Thin-film Perovskite Solar Cells

Tandem technology has gained track during the last decade to surpass the theoretical efficiency of a single layer solar cell of 31%. However, there are some challenges that must be addressed before tandems can reach the commercialization level. A stable power conversion efficiency for a high bandgap solar cell compatible with a tandem structure is one of the main issues that prevents perovskites in reaching the market. Here, it is proposed the necessary steps to make stable tandem solar cells by having a 100% controlled process of a high bandgap perovskite solar cell, a hypothetical low bandgap perovskite solar cell, and their respective union into a tandem.