Classification of Semiconductors (Intrinsic/Extrinsic, P-Type/N-Type)

While strange at first glance, knowing the classification of semiconductors will help you understand what they are and why they act the way they do. We discuss what's happening at the molecular level in the crystal lattice of the semiconductor and the difference between undoped, or intrinsic semiconductors and doped, or extrinsic semiconductors.

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Table of Contents
0:00 Introduction
01:25 Pure or Intrinsic Semiconductor
01:34 Doped or Extrinsic Semiconductor
01:47 Pentavalent (N-type) extrinsic semiconductor
02:56 Trivalent (P-type) extrinsic semiconductor
04:09 P-N Junction
04:26 Summary

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