To convert solar energy into electric power, most solar power plants use silicon elements. That despite some indisputable advantages, have some critical flaws, in particular, dependence of the operation on the time of the day, high price, difficulties with the disposal of photocells, and – most important – relatively low efficiency at the level of 22%.
One of the ways to improve the performance of solar panels is to use an alternative material, namely, perovskite. Perovskites are hard crystals that were discovered in nature in 1839 and now are easily synthesized with different modifications. The main advantages of perovskites are their ability to absorb light almost at all visible wavelengths, high efficiency of energy conversion, and relative simplicity of production. Notably, the perovskite coating on a solar panel is no more than 2 mm thick. Due to the material's unique properties, a panel color may be adjusted.
Despite its high potential, the perovskite-based technology is still at the early stages of commercialization as compared to other technologies due to some problems. Cheap perovskite solar panels have a short working lifespan. The material also quickly deteriorates in the presence of humidity. Another problem is scaling: high-performance values have been registered with small cells that are suitable for laboratory tests, but too small to be used in a real solar panel.
Nonetheless, perovskite solar panels are, no doubts, a rising star in the photovoltaics. Despite the problems with using such coating, it is thought to be a material of the future. In particular, such company as Hunt Perovskite Technologies focuses on improving this material with an outlook at its commercial use in the future. Besides, in 2015, Saule Technologies concluded an investment contract with a Japanese investment company Hideo Sawada. Saule intends to combine perovskite solar panels with other products available today. Source: https://cleantechnica.com/2020/02/29/super-secret-perovskite-solar-cell-company-bursts-out-of-stealth-mode/