A solar cell is made of two types of semiconductors, called p-type and n-type silicon. The p-type silicon is produced by adding atoms—such as boron or gallium—that have one less electron in their ...

and the Chola army lost the battle mainly on account of a well-aimed arrow of Butuga having fatally wounded Rajaditya. “The heroic Rajaditya, the ornament of the solar race, having shaken in the ...