Development and Challenges of Large-Area All-Perovskite Tandem Solar Cells and Modules

The efficiency of all-perovskite tandem solar cells has recently surpassed that of single-junction perovskite solar cells, showing great potential as a future photovoltaic technology due to its low manufacturing cost and high power conversion efficiency potential, yet the size of these cells is still at the laboratory level. It is highly required to develop scalable preparation methods to fabricate large-area all-perovskite tandem solar modules for commercial applications. Herein, the key challenges encountered in the laboratory of all-perovskite tandem solar cells and the existing solutions are summarized and some views on the preparation of large areas and modules are given. Development of large-area all-perovskite tandem solar cells and tandem solar modules (TSMs) is briefly summarized, and the views on the optimization of large-area modules from a forward-looking perspective are put forward. It is believed that more researchers will enter the all-perovskite TSMs field, and it is hoped these insights will help drive the commercial applications of all-perovskite TSMs.image (c) 2024 WILEY-VCH GmbH