25 × 1032)/(5 ×1022)
          ~ 4 5 × 109 m–3
Rationalised 2023-24
333
Semiconductor Electronics:
Materials, Devices and
Simple Circuits
14 5  p-n JUNCTION
A p-n junction is the basic building block of many semiconductor devices
like diodes, transistor, etc A clear understanding of the junction behaviour
is important to analyse the working of other semiconductor devices