In solid-state physics, the valence band and conduction band are the bands closest to the Fermi level, and thus determine the electrical conductivity of the solid. In nonmetals, the valence band is the highest range of electron energies in which electrons are normally present at absolute zero temperature, while the conduction band is the lowest range of vacant electronic states. On a graph of the electronic band structure of a material, the valence band is located below the Fermi level, while the conduction band is located above it. The distinction between the valence and conduction bands is meaningless in metals, because conduction occurs in one or more partially filled bands that take on the properties of both the valence and conduction bands. (Wikipedia).
Physics 40 Resistivity and Resistance (13 of 32) Resistivity in Light Bulbs
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the resistivity in light bulbs.
From playlist PHYSICS 40 RESISTIVITY AND RESISTANCE
Electron distribution in valence and conduction bands as temperature changes
The Fermi-Dirac distribution tells us how fermions like electrons occupy available states as a function of energy, chemical potential, and temperature. We see that increasing temperature leads to more electrons higher energy levels. This expression helps us understand how many electrons wi
From playlist Materials Sciences 101 - Introduction to Materials Science & Engineering 2020
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From playlist Chemistry
Conductors and Insulators - Electrical Conductivity
This video is about electrical conductivity. It discusses materials that behave as conductors and insulators. Examples include metals, wood, glass, ITO glass, plastic, etc. ITO Conductive Glass: https://amzn.to/36x8EyO 4 Slot D Cell Battery Holder: https://amzn.to/3yW0Anh 3V Mini Ligh
From playlist Science and Technology
Electrical Conductance of Various Materials
From playlist 101L Gen Chem 1
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From playlist Chemistry
Electrical Engineering: Basic Laws (4 of 31) What is Conductance?
Visit http://ilectureonline.com for more math and science lectures! In this video I will explaintwhat is conductance. Next video in this series can be seen at: https://youtu.be/iWfCc5Eoqho
From playlist ELECTRICAL ENGINEERING 2 BASIC LAWS
Resistance & Resistivity, An Explanation
Goes over an explanation of resistance and resistivity. Includes a worked example. Resistivity is a property of a material that tells you how strongly it resists or conducts the flow of electric current. A low resistivity indicates a material that allows the flow of electric current. Resi
From playlist DC Circuits; Resistors in Series and Parallel
Metallic Bonding and the Electron Sea Model, Electrical Conductivity - Basic Introduction
This chemistry video tutorial provides a basic introduction into metallic bonding and the electron sea model. The valence electrons in the metal are delocalized - they are free to move around stationary metal cations. This explains the electrical conductivity of metals. A substance with
From playlist New AP & General Chemistry Video Playlist
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
Semiconductors 1: intrinsic & extrinsic semiconductors (Higher Physics)
Higher Physics - first in a series of 3 videos on semiconductors. This video covers intrinsic semiconductors, band theory and doping to form n-type or p-type semiconductors. ----------------------------------------------------- Support the channel – you can buy me a coffee here... http
From playlist Higher - Electricity
Mod-06 Lec-13 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
Band theory (semiconductors) explained
An explanation of band theory, discussing the difference between conductors, semiconductors and insulators, including a useful analogy. 👍 Really like this video? Support by buying me a coffee ☕️ - www.buymeacoffee.com/physicshigh Subscribe - www.youtube.com/c/physicshigh LIKE and SHA
From playlist New here? A selection of what I do
Mod-01 Lec-35 Electron Dynamics in a Periodic Solid
Condensed Matter Physics by Prof. G. Rangarajan, Department of Physics, IIT Madras. For more details on NPTEL visit http://nptel.iitm.ac.in
From playlist NPTEL: Condensed Matter Physics - CosmoLearning.com Physics Course
Doped Semiconductors Explained
The third in the series on semiconductors, this video explains how doping a semiconductor such as silicon, improves its conductive properties, using band theory model to explain. See www.physicshigh.com for all my videos and other resources. If you like this video, please press the LIKE a
From playlist Modern Physics
Lec 14 | MIT 3.091 Introduction to Solid State Chemistry
Introduction to the Solid State, the 7 Crystal Systems, the 14 Bravais Lattices View the complete course at: http://ocw.mit.edu/3-091F04 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 3.091 Introduction to Solid State Chemistry, Fall 2004
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
Exam 2, Problem 3 | MIT 3.091SC Introduction to Solid State Chemistry, Fall 2010
Exam 2, Problem 3 Instructor: Brian Spatocco View the complete course: http://ocw.mit.edu/3-091SCF10 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 3.091SC Introduction to Solid State Chemistry, Fall 2010
Lec 13 | MIT 3.091 Introduction to Solid State Chemistry
Intrinsic and Extrinsic Semiconductors, Doping, Compound Semiconductors, Molten Semiconductors View the complete course at: http://ocw.mit.edu/3-091F04 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 3.091 Introduction to Solid State Chemistry, Fall 2004
Intrinsic semiconductors are pure, stoichiometric materials that have not been doped with additional compounds in order to modify their electrical conductivity. The band gap of these materials increases as we move from group IV materials like silicon and germanium to III-V (GaAs etc) and I
From playlist Materials Sciences 101 - Introduction to Materials Science & Engineering 2020