Answer:
[tex]Isc -I = Io [e^{\frac{qv}{nKt}} - 1][/tex]
Explanation:
the equation of current for the diode is
[tex]I = Isc - Io [e^{\frac{qv}{nKt}} - 1][/tex] ..........................1
here Isc is short circuit current
Io is the reverse saturation or the dark current
I is load current
q is charge
K is Boltzman constant i.e 1.381 ×[tex]10^{-23}[/tex] J/K
n is ideality factor
T is absolute temperature
and
here Isc - I is net current flow through diode and actual current when it is in light
so
[tex]Isc -I = Io [e^{\frac{qv}{nKt}} - 1][/tex]
here we know Io is dark saturated current it mean in the absence of light diode leak current density
and Io is important parameter to differentiate between diode
