Unraveling the Impact of Bromine Incorporation on the Hybrid Perovskite Film Phase Evolution Mechanism by In Situ Characterization (Adv. Energy Mater. 39/2023)

Perovskite Films In article number 2300957, Jingquan Zhang and co-workers report the dependence of film phase on the bromine content in anti-solvent assisted spin coating technology. The incorporation of bromine promotes the 3C phase formation significantly by reducing the energy barrier from the 2H to the 3C phase. The results have significant potential value for improving efficiency of small area devices as well as large area modules.