The photovoltaic solar cells that are currently used for harvesting of solar power are highly ineffective with power conversion rates that are lower than 15%. Therefore it is necessary to find the new materials for the solar cells. Silicone are widely used for solar cells, but many scientists are researching the materials that can replace silicon. Perovskites are special mineral structures, where calcium titanium trioxide is one of the most common forms. The researchers still need to solve the barriers that are caused by high costs of perovskites comparing to silicone. The first perovskite solar cells have already reached 16 percent efficiency and there are predictions that they will reach more than 50 percent efficiency in the future.
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