CE Purdue Semiconductor Fundamentals L4.1: Carrier Transport - Landauer Approach скачать в хорошем качестве

CE Purdue Semiconductor Fundamentals L4.1: Carrier Transport - Landauer Approach

Table of Contents available below. This video is part of the course "Semiconductor Fundamentals" taught by Mark Lundstrom at Purdue University. The course can be found on nanoHUB.org at https://nanohub.org/courses/sfun or on edX at https://www.edx.org/course/semiconduc... . This course provides the essential foundations required to understand the operation of semiconductor devices such as transistors, diodes, solar cells, light-emitting devices, and more. The material will primarily appeal to electrical engineering students whose interests are in applications of semiconductor devices in circuits and systems. The treatment is physical and intuitive, and not heavily mathematical. Technology users will gain an understanding of the semiconductor physics that is the basis for devices. Semiconductor technology developers may find it a useful starting point for diving deeper into condensed matter physics, statistical mechanics, thermodynamics, and materials science. The course presents an electrical engineering perspective on semiconductors, but those in other fields may find it a useful introduction to the approach that has guided the development of semiconductor technology for the past 50+ years. Table of Contents: 00:00 Lecture 4.1: The Current Equation 00:35 What causes a current? 00:51 What causes water to flow? 01:11 What causes water to flow? 01:35 What causes water to flow? 01:58 What causes water to flow? 02:12 Connection to the outside 02:48 Electron transport 03:30 Current in a nano device 04:09 Current in a nano device 04:19 Current in a nano device 05:15 Answer: The current equation 06:35 What is transmission? 07:40 Transmission and mean-free-path 09:31 Transmission 10:56 What is a channel? 11:23 Channels are like lanes on a highway 12:37 "Fermi window" 13:05 How current flows (T = 0 K) 15:22 What causes a current? 15:39 Fermi window under small bias 17:36 Voltage and electron energy 18:23 Fermi window: small bias 20:10 Current for a small voltage difference 20:51 Small bias conductance 21:14 Current in a bulk semiconductor 22:18 Current equation in the bulk 23:25 Current equation in the bulk 24:41 The quasi-Fermi level or electrochemical potential 26:10 Summary