Focus: Solar energy supply

Solar modules made from silicon are too rigid for many applications – and they are often too expensive. Solar cells on flexible film are the solution, and are capable of generating power from sunlight much more cheaply. Empa is researching into the construction of such cells, and a start-up company is already trialling series production next door. Two types of cells are examinated: Inorganic solar cells – so called CIGS cells – on the one hand, which should be ready for market in a few years. On the other hand Empa does research on organic solar cells on the basis of dyes. With this technology, transparent solar cells become possible.