If a PN junction diode of depletion layer width W and barrier height `V_(0)` is forward biased, then

In revers bias pn-junction diode depletion layer width

In forward bias the width of depletion layer is

What happens to the width of the depletion layer in ap.n junction diode when it is 1) forward-biased and 2) reverse -biased ?

What is junction diode ? How is depletion layer formed ? Draw its forward and reverse bias characteristics by showing biasing of diodes ?