Hauff, Elizabeth vonElizabeth vonHauff2022-03-062022-03-062021https://publica.fraunhofer.de/handle/publica/26985810.1016/j.chempr.2021.06.020Perovskite photovoltaics offer advantages for low-cost, efficient-energy production. However, interfacial losses currently limit device performance and stability. In this issue of Chem, Sutanto et al. visualize the energetic landscape of novel 2D/3D perovskite heterojunctions and thereby demonstrate the potential of optimized 2D perovskite layers as transport layers for high-performance, stable perovskite photovoltaics.enphotovoltaicsolar cellsheterojunctions620667670journal article