1.The energy band gap of CdTe and InP are 1.44 eV and 1.27 eV, respectively. Find the range of the sunlight wavelength that each material will absorb. Which one is suitable for using in a solar cell? Give your reason(g) The cell area required for an output of 25 W when exposed to solar radiation of 900
W/m2 (5)
Hint: To find the voltage at maximum power, try to differentiate P with respect to V
and equate to zero (find the maximum value).