What are spray-on solar cells? The spray-on solar cells are an extension of perovskite solar cells (PSCs). In these solar cells, the active perovskite material is sprayed on a substrate that already has layers of cathode and electron transport layer (ETL). Further layers needed in the complete design of the

Perovskite solar cells A perovskite solar cell is a solar energy harvesting cell, just like other technologies of the solar cells. However, as its name suggests, perovskite solar cells have an active perovskite material whose structure of crystal resembles the crystal structure of calcium titanium oxide (CaTiO3 ). All perovskite