Given this picture, the circuit is put in reverse bias. Therefore the electrons are flowing INTO the p-type junction.
- As electrons flow into the p-type material the depletion zone is raised as the p-side is made more negative. A picture from hyperphyics.phy-astr.gsu.edu illustrates this
How does this inhibit current from flowing into the n-junction? Electron current-wise
Conversely the notion of a forward bias diode also confuses me,
- Electrons flow into the n-type , however there still exists that barrier potential from the equilibrium of a p-n junction. How do the electrons 'push through' the barriers to conduct electricity?
Is it because the initial energy from the power source is much greater than the potential barrier?