The biggest motivation for the development of organic and perovskite solar cell technology is the low cost potential, based on the use of low-cost materials and substrates and the very high production speeds that can be reached by roll-to-roll printing and coating. The main challenge today is the move from lab scale devices to the devices manufactured on an industrial level. In Holst Centre and Solliance alliance we demonstrate successful transfer of knowledge from the lab to industrial prototypes by implementing roll-toroll printing and coating methods. Up-scaling of the OPV modules using printing and coating methods will be discussed. This is an important step towards large-volume manufacturing of OPV on flexible substrates.

The latest new developments in the field of perovskite solar cells and the high efficiency level have significantly increased the interest in this type of solar cells. Similarly to organic solar cells the perovskites can be processed using printing and coating methods. Our developments demonstrate how the knowledge obtained in last years for organic solar cells manufacturing can be re-used and transferred for the development of new technology for perovskite solar cells. In order to develop stable and reproducible vacuum-free R2R process for all the layers in the device stack the following topics are intensively investigated: (i) optimization of generic device stack which will provide high efficiency and long operational stability; (ii) low temperature and non-vacuum R2R compatible processes for all the layers in the device stack; (iii) advanced module design using laser system; and many others. Flexibility, low cost and high efficiency open new strategies for the further application of Perovskite PV and make this technology competitive with conventional PV technologies.