Chapter 1, Problem 1.29P

A silicon pn junction diode has an emission coefficient of $n=1$ . The diode current is $I_D=1\text{mA}$ when $V_D=0.7\text{V}$ . (a) What is the reverse−bias saturation current? (b) Plot, on the same graph, ${\log }_{10}{I}_D$ versus $V_D$ over the range $0.1\le V_D\le 0.7\text{V}$ when the emission coefficient is (i) $n=1$ and (ii) $n=2$ .