Difference between hole and +ve ion?

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    Difference Hole Ion
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SUMMARY

The discussion clarifies the distinction between an electron hole and a positive ion in intrinsic semiconductors. When an electron is thermally excited from the valence band to the conduction band, it leaves behind a positively charged hole, while the atom becomes a positive ion. The movement of holes, which are effectively the absence of electrons, contributes to current flow in the opposite direction of free electrons. Unlike positive ions, which remain fixed in the crystal lattice, holes can drift through the semiconductor material.

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Can anybody tell me what actually is difference between between electron hole and positive ion.
 
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If an atom in an intrinsic semiconductor (SC) is excited thermally so an electron jumps from the valence band to the conduction band, then the electron is free and the atom becomes a positive ion. This is called a hole. If an electric field is applied across the material, free electrons will drift to carry a current. If a free electron created elsewhere in the lattice collides with the hole they recombine into a neutral atom--but there is a hole left where that electron came from. It looks like holes drift too, opposite to the electrons. Because they are charged positively, they also contribute to carrying current. Notice that the ion itself doesn't move, because it is bound in the crystal lattice. It's the hole that moves. That's the difference.
 

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