With the help of a simple diagram, explain the working of a silicon solar cell, giving all three basic processes involved. Draw its I-V characteristic.
(c) (i) Generation of electron-hole pair due to light close to the junction, The energy of light
(ii) Separation of electrons to n side and hole to P side due to the electric field in the depletion region.
(iii) Collection; electrons reaching n side is collected by front contact and the holes reaching P side are collected by back contact.
I-V chara of solar cell