A simple and versatile nanoparticle ink could help next-generation perovskite solar cells to be printed at scale and become the dominant force in commercial photovoltaics.
Made from tin oxide, the ink is created with just one key step at relatively low temperature using microwave technology, and without any need for further purification. It’s then used in solar cells to help selectively transport electrons, a crucial step in generating electricity.
Prototype devices built with this method have recorded power-conversion efficiencies of 18%, which is among the best efficiencies for a planar-structured perovskite solar cell processed at low temperatures.
The ink is suitable for making different types of perovskite solar cells, including with glass and for printing onto plastic, which can be done cheaply at high volumes. This technique, called roll-to-roll coating, is similar to the way…
Printing a new chapter in solar energy — ScienceDaily
