Proceedings of Perovskite Thin Film Photovoltaics (ABXPV16)
Publication date: 14th December 2015
The rapid rise of efficiencies of perovskite solar cells has attracted great interest on their industrialization processing. However, efficient devices are produced under inert atmosphere either by evaporation or by making use of metal oxides annealed at high temperatures, which are not suitable for flexible substrates. Therefore, there are several steps that need to be addressed in order to achieve low cost high throughput production of perosvkite solar cells.
In this sense, the construction of the charge collecting layers can be adapted to make it compatible with solution processing. So, we have worked on the construction of preformed inorganic metal oxide nanoparticles that can be applied as electron or hole transport layers in the solar cells. We have tested both commercially available nanoparticles and samples prepared in our premises in order to study the influence of their surface properties on the in-situ formation of the perovskites. Examples of the tested materials are Al2O3, TiO2, ZnO, SnO2 or MoO3. The devices have been prepared by solution processing under ambient conditions to facilitate the transition to industrial processing.