Current (I) expression of a diode is given by: (where symbols have usual meaning)
1
\(\mathrm{I}=\mathrm{I}_0\left(\mathrm{e}^{\frac{\mathrm{qv}}{\mathrm{}^{\mathrm{\eta T}}}}-1\right)\)
2
\(\rm I=I_0\left(e^{\frac{\mathrm{v}}{\eta \mathrm{kT}}}\right)\)
3
\(\mathrm{I}=\mathrm{I}_0\left(\mathrm{e}^{\frac{\mathrm{qv}}{\mathrm{\eta kT}}}-1\right)\)
4
\(\mathrm{I}=\mathrm{I}_0\left(\mathrm{e}^{\frac{\mathrm{qv}}{\mathrm{} \mathrm{ \eta kT}}}-2\right) \)