The National Centre for Photovoltaic Research and Education (NCPRE) at IIT Bombay has achieved a major breakthrough in developing a perovskite solar cell with over 26% efficiency, surpassing conventional solar cells on the market. To compare, with the best of the conventional solar cells in the market, you will be lucky to get an efficiency of 22 per cent. Efficiency is the percentage of sun’s light energy that falls on the cell that is converted into electrical energy.
In material science, the word ‘perovskite’ refers to a certain crystal structure in which the atoms are arranged. It is in the form of ABX3. For example, Calcium titanium oxide, or CaTiO3 is a perovskite.
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