In solid-state physics of semiconductors, a band diagram is a diagram plotting various key electron energy levels (Fermi level and nearby energy band edges) as a function of some spatial dimension, which is often denoted x. These diagrams help to explain the operation of many kinds of semiconductor devices and to visualize how bands change with position (band bending). The bands may be coloured to distinguish level filling. A band diagram should not be confused with a band structure plot. In both a band diagram and a band structure plot, the vertical axis corresponds to the energy of an electron. The difference is that in a band structure plot the horizontal axis represents the wave vector of an electron in an infinitely large, homogeneous material (a crystal or vacuum), whereas in a band diagram the horizontal axis represents position in space, usually passing through multiple materials. Because a band diagram shows the changes in the band structure from place to place, the resolution of a band diagram is limited by the Heisenberg uncertainty principle: the band structure relies on momentum, which is only precisely defined for large length scales. For this reason, the band diagram can only accurately depict evolution of band structures over long length scales, and has difficulty in showing the microscopic picture of sharp, atomic scale interfaces between different materials (or between a material and vacuum). Typically, an interface must be depicted as a "black box", though its long-distance effects can be shown in the band diagram as asymptotic band bending. (Wikipedia).
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From playlist Optoelectronic and Photonic Devices
How to Make a Radar Chart in R
This video shows how to make radar charts, also known as spider charts or web charts, in R. A radar chart allows you to display statistics across several different axes to generate an overall summary of an individual's scores across those attributes. Radar charts are usually used to displ
From playlist Code Clips: R Plots
Notation and Basic Signal Properties
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From playlist Introduction and Background
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From playlist Electronics I: Semiconductor Physics and Devices
What is a bar graph? Different types of bar graphs including stacked and segmented.
From playlist Charts and Graps
Signal Flow Graph Example Part 1
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From playlist RF Amplifier Design
Graphing Equations By Plotting Points - Part 1
This video shows how to graph equations by plotting points. Part 1 of 2 http://www.mathispower4u.yolasite.com
From playlist Graphing Various Functions
Signal Flow Graph Introduction
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From playlist RF Amplifier Design
Heterojunction Band Diagrams Explained
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From playlist Electronics I: Semiconductor Physics and Devices
Mod-06 Lec-15 Electrical Conduction in Ceramics ( Contd .)
Advanced ceramics for strategic applications by Prof. H.S. Maiti,Department of Metallurgy and Material Science,IIT Kharagpur.For more details on NPTEL visit http://nptel.ac.in
From playlist IIT Kharagpur: Advanced Ceramics for Strategic Applications | CosmoLearning.org Materials Science
MOSFET Band Diagram Explained Part 2
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From playlist Electronics I: Semiconductor Physics and Devices
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From playlist Electronics I: Semiconductor Physics and Devices
Mod-06 Lec-14 Electrical Conduction in Ceramics ( Contd.)
Advanced ceramics for strategic applications by Prof. H.S. Maiti,Department of Metallurgy and Material Science,IIT Kharagpur.For more details on NPTEL visit http://nptel.ac.in
From playlist IIT Kharagpur: Advanced Ceramics for Strategic Applications | CosmoLearning.org Materials Science
energy bands and intrinsic vs extrinsic semiconductors
0:00 tips for maximizing partial credit on exams 5:29 enormous range of electrical conductivity in materials 6:42 why energy bands form 11:21 metals vs semiconductors vs insulators in terms of band diagrams 21:02 electron occupancy as a function of energy (fermi distribution) 25:34 electro
From playlist Introduction to Materials Science and Engineering Fall 2018
MOS Capacitor - Accumulation Mode Explained
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From playlist Electronics I: Semiconductor Physics and Devices
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From playlist Electronics I: Semiconductor Physics and Devices
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From playlist Electronics I: Semiconductor Physics and Devices