*1.3.1 Short-circuit current density*

The short-circuit current density is usually written as *Jsc*, which corresponds to the current that passes through the solar cell of one square centimeter area when the impedance is low and voltage across solar cell is zero. The *J*sc arises due to generation and collection of light-generated charge carriers. For ideal solar cell, at most moderate resistive loss mechanisms, the *J*sc and light-generated current are identical. Basically, *J*sc depends upon the area of the solar cell, number of photons reaching at the junction, exposure of incident light, etc.
