Tin (IV) oxide nanosheets

Tin(IV) oxide (SnO₂) nanosheets are an attractive choice for creating stable and high-performance perovskite solar cells due to its wide bandgap, increased electron mobility, and high stability. SnO₂ has a higher bandgap (at 3.8 eV), and the conduction band edge exhibits a 300 mV positive shift compared to TiO₂, which results in lower photocatalytic activity and higher device stability. The charge mobility of SnO₂ is almost two orders of magnitude higher than that of TiO₂ and has a lower trap density than TiO₂. Finally, SnO₂ nanosheets materials have an advantage over typical TiO₂ materials in flexible and low-temperature applications.