<Tr> <Th_colspan="2"> Structure </Th> </Tr> <Tr> <Td> Crystal structure </Td> <Td> Zinc blende </Td> </Tr> <Tr> <Td> Space group </Td> <Td> T - F - 43m </Td> </Tr> <Tr> <Td> Lattice constant </Td> <Td> a = 565.35 pm </Td> </Tr>

Why are silicon and gallium arsenide preferred materials for solar cells