Perovskites could make solar energy self-reliant

The alternative to siliconbased PV cells, which is the speciality of China, has since been developed in the shape of Perovskite solar cells which have also been tried and tested. According to the work done at the National Institute of Advanced Studies, Bengaluru, the efficiency of Perovskite cells, which was about 3 per cent in 2006, has shown a marked improvement and has now been determined to be about 22 per cent, which makes it quite viable.