8.13 Energy band diagram of p-n diode

The band diagram of isolated p-type and n-type materials are shown in Figs. 8.18(a) and (b)

 

Figure 8.18 (a) Band diagram of p-type material

images

Figure 8.18 (b) Band diagram of n-type material

images

The Fermi level lies close to the conduction band in n-type material and it is close to valence band in p-type material. When a p-n diode is made with p-type and n-type materials, then flow of free charge carriers takes place at the junction. As the charge carriers flow from one side of the junction to the other side, ...

Get Engineering Physics now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.