Lesson: Semiconductor Diodes Physics • Third Year of Secondary School

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In this lesson, we will learn how to model a semiconductor diode as a junction between n-type and p-type doped semiconductors.

Students will be able to

describe the motion of free electrons and vacancies through a PN junction,
define the depletion layer of a PN junction,
describe the effect of applying an external voltage across a PN junction in the forward and reverse directions on the motion of free electrons and vacancies through the junction.