Abstract

The doping exercise has been known to affect the electronic properties of semiconductor materials. However, little is known about the mystery behind what is exactly responsible for this doping effect. In this paper, we report our theoretical findings about a form of gravitation within the lattice and how it can be said to be induced or even responsible for the doping effect. We have observed that the lattice is being grouped into bands of energies by this form of gravitation. We have identified two major types: a-core and a-core-less. It is this form of gravitation that is actually responsible for the selection (or rejection) of atoms into (or from) a band. Hence, we have found out that there seems to be a competition between the electronic effect and this form of gravitation whenever doping occurs.  The dopant atom being an impurity atom will contribute to depopulating or populating the band it is located.

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