Enabling a rapid SnO2 chemical bath deposition process for perovskite solar cells

Chemical bath deposition (CBD) is a common method to fabricate SnO2 electron-transport layers in perovskite solar cells. However, this typically requires long deposition times, which is a significant drawback for the eventual commercialisation of perovskite solar cells. By applying ultrasonication during the chemical bath deposition process, higher rates of heterogenous nucleation were triggered, which accelerated the CBD process without sacrificing coverage. Deposition times of 15 min, 30 min and 45 min were investigated and 30 minutes was determined to be the optimal duration for the ultrasonication assisted chemical bath deposition with the current parameters.

Automated summary

Chemical bath deposition (CBD) is commonly used to fabricate SnO2 electron-transport layers in perovskite solar cells. However, long deposition times pose a significant limitation for commercialization. By utilizing ultrasonication, the CBD process can be accelerated without sacrificing coverage. The optimal duration for ultrasonication-assisted CBD was determined to be 30 minutes with current parameters.