Semiconductors (Electrical Properties of Materials #12)

Опубликовано: 27 Апрель 2021
на канале: Aaron Danner

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What is so special about silicon? Why are some materials more conductive to electricity than others? Where does static electricity come from? This 14-video lecture series introduces electronics from a materials perspective, and is based on a course which all freshman engineering students take at the National University of Singapore.

In this video:
00:34 Insulators versus metals
01:22 Why metals are not transparent
02:02 How to calculate resistivity and conductivity
04:00 What influences electron and hole mobilities
05:00 Silicon versus germanium
06:00 How to calculate resistance
06:26 n-type doping of a semiconductor
08:09 p-type doping of a semiconductor
09:07 Conductivity modulation in a semiconductor
11:24 Insulators versus semiconductors
12:02 Absorption of light (examples)

Nearly 70 additional practice problems are available in the MOOC version of this course, along with supplemental videos:
https://www.edx.org/course/electronic...

Aaron Danner is a professor in the Department of Electrical and Computer Engineering at the National University of Singapore.
http://danner.group

Videos were filmed by NUS Centre for Instructional Technology with additional editing by Cheryl Lim.
@randomcheryl