Proceedings of MATSUS Fall 2023 Conference (MATSUSFall23)
DOI: https://doi.org/10.29363/nanoge.matsus.2023.047
Publication date: 18th July 2023
Several different theoretical concepts promise to allow going beyond the efficiency limitations of single junction solar cells, tandem devices being arguably the most promising approach, in many cases already exceeding the best performance of the constituting single junction devices. Among the many different possible combinations of semiconductors, halide perovskites in conjunction with crystalline silicon in a monolithic tandem configuration are currently the most advanced contender in the race for the technology that will most likely gain market maturity in the near future. In this contribution, I’ll share several of our recent key developments that led us to exceed 30% efficiency on a small area for different types of monolithically integrated two-terminal perovskite-silicon tandem solar cells. Beyond that, I will discuss which obstacles will have to be overcome to further enhance the efficiency and critically the operational stability under accelerated indoor and prolonged outdoor conditions along several of our most recent findings.