Thor, WaygenDe Cian, LouiseDiercks, Nicolas J.Friedrich, DennisYum, Jun-HoSivula, Kevin2025-10-222025-10-222025-10-21202510.1039/d5ta03603hhttps://infoscience.epfl.ch/handle/20.500.14299/255165Bulky naphthalene diimide-based cations enable layered Sn–I perovskites with type-II nanoheterojunctions, enhancing charge lifetime, out-of-plane electron mobility, and air stability, advancing prospects for stable tin-based optoelectronics.enSemiconducting divalent organic spacer-assisted charge transport in lead-free layered perovskitestext::journal::journal article::research article