We have valence electrons and conduction electrons in a semiconductor. Do we also have 'valence holes' and 'conduction holes'?
Answers
Answer:We have valence electrons in the outer orbit of a semiconductor. We have conduction electrons in the conduction band of semiconductor at 300 K. When an electron jumps from the valence band to the conduction band, a hole is created in the valence band at the place from where that electron jumped. There is no such concept of ‘valence holes’ and ‘conduction holes’. A place void of electron is a hole.
Explanation:
A valence or conductive hole is just a virtual concept.
Explanation:
- In fact there are no gaps. They just virtually exist. When an electron transfer from the valence band to the conductive band, a vacancy is generated at the position the electron was jumping from.
- The vacancy is known as a void. So, a valence or conductive hole is just a virtual concept.
Valence band:- The valence band is the collection of electron orbitals from which electrons will spring when excited, moving into the conductive band. A valence band is essentially the orbital outer edge electron of such an atom of some given substance where the electrons currently occupy.
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