Lesson: Doped Semiconductors Physics • Third Year of Secondary School

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In this lesson, we will learn how to describe the effect that doping a semiconductor has on its electrical properties.

Students will be able to

describe how adding donor and acceptor ions to a pure semiconductor’s atomic lattice produces free electrons and vacancies in the lattice,
relate the free electron and vacancy densities of a doped semiconductor using the formula ,
relate the free electron and vacancy densities to the acceptor and donor ion densities in a doped semiconductor using the formulas ,
relate the free electron and vacancy densities to the acceptor and donor ion densities in a doped semiconductor using the formulas .