Why does fermi level change with doping

This idea is represented by the upward shift of Fermi level. Assume that all the electrons are sitting at the Fermi level which is very close to conduction band now and they can shift to conduction band by gaining a few eV of energy. Similarly, when the device is p-doped holes can easily jump to valence band and this phenomenon is represented by shift of Fermi level near the valence band.

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Comments No comments. Why is this? Improve this question. MarianD 2, 2 2 gold badges 10 10 silver badges 18 18 bronze badges. Ben Ben 1, 8 8 silver badges 16 16 bronze badges. So because the number of particles changes it changes the fermi level? That's hard to understand.. What is the definition of the fermi level? Add a comment. Active Oldest Votes. Sign up or log in Sign up using Google. Sign up using Facebook.

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