Hole A mobile electron vacancy in a semiconductor that acts like a positive electron charge (+1.6 x 10-19 coulomb) with a positive mass. An unoccupied spot among the electrons that are bound in their orbits. Under the application of an electric field, holes move in the opposite direction from electrons, thereby producing an electric current. Holes are induced into a semiconductor by adding small quantities of an acceptor dopant to the host crystal.

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