Jiajia Suo

Jan 9, 2024 | pubs.rsc.org | Bowen Yang |Jiajia Suo |Dmitry Bogachuk |Waldemar Kaiser

Universal ligand for lead coordination and tailored crystal growth in perovskite solar cells Chemical environment and precursor-coordinating molecular interactions within a perovskite precursor solution can lead to important implications in structural defects, crystallization kinetics of a perovskite film.

Jan 3, 2024 | nature.com | Jiajia Suo |Bowen Yang |Edoardo Mosconi |Kyle Frohna |Dominik J. Kubicki |Fan Fu | +7 more

AbstractThe stabilization of grain boundaries and surfaces of the perovskite layer is critical to extend the durability of perovskite solar cells. Here we introduced a sulfonium-based molecule, dimethylphenethylsulfonium iodide (DMPESI), for the post-deposition treatment of formamidinium lead iodide perovskite films. The treated films show improved stability upon light soaking and remains in the black α phase after two years ageing under ambient condition without encapsulation.