Last Updated 12 years ago by Kenya Engineer
Geologists have found something that could change the engineer’s approach in developing solar panels. While solar panels have often been made of silicon photovoltaic cells, this is likely to change to Perovskite rock. Perovskite rock is in the family of naturally-occurring crystalline minerals.
Perovskite-based cells are not only easy to manufacture at low expenses but are with a power conversion efficiency of 19.3%.
These solar cells are usually built using processed ‘organo-metal halide’ perovskite, that are first crystallized and then attached to a top electrode. Production involves simple and cost-efficient printing of the solar cells, which makes perovskite a much cheaper alternative to the traditional photovoltaic cells in the market.
Altering the component elements of the ABX3 (Perovskite’s chemical formula) structure can lead to changes in chemical properties, an added advantage that opens up doors to a number of fascinating possibilities. For instance, the perovskite crystal can be made partially transparent enough to be used as solar powered window panes.
Scientists believe that with further improvements in technology, the power conversion efficiency of perovskite will soon surpass the 20.8% of CIGS and 25% of the commercially available crystalline silicon solar cells.
To curd the toxic effects of lead -a metal that occurs in most minerals- tin-based (lead-free) perovskite solar cell versions have successfully been developed.This could be the future of solar energy.
Extracts from Hexapolis
-
Product on sale
AWEBook Volume 2Original price was: KShs 3,500.00.KShs 3,000.00Current price is: KShs 3,000.00.
