For a Pn Junction Photocell?

In a p-n junction photo cell, the value of the of the photo electromotive force produced by monochromatic light is proportional to. When a light (wavelength sufficient to break the covalent bond) falls on the junction, new hole electron pairs are created.

What is photo electromotive force?

(or photo-emf), an electromotive force (emf) that is produced in a semiconductor when electromagnetic radiation, which consists of photons, is aborbed in the semiconductor.

How pn junction is formed?

P-n junctions are formed by joining n-type and p-type semiconductor materials, as shown below. Since the n-type region has a high electron concentration and the p-type a high hole concentration, electrons diffuse from the n-type side to the p-type side. ... A "built-in" potential V_bi is formed at the junction due to E.