In physics, the field effect refers to the modulation of the electrical conductivity of a material by the application of an external electric field. In a metal, the electron density that responds to applied fields is so large that an external electric field can penetrate only a very short distance into the material. However, in a semiconductor the lower density of electrons (and possibly holes) that can respond to an applied field is sufficiently small that the field can penetrate quite far into the material. This field penetration alters the conductivity of the semiconductor near its surface, and is called the field effect. The field effect underlies the operation of the Schottky diode and of field-effect transistors, notably the MOSFET, the JFET and the MESFET. (Wikipedia).
Semiconductors - Physics inside Transistors and Diodes
Bipolar junction transistors and diodes explained with energy band levels and electron / hole densities. My Patreon page is at https://www.patreon.com/EugeneK
From playlist Physics
Physics - E&M: Magn Field Effects on Moving Charge & Currents (22 of 26) The Hall Effect
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain how Hall was able to determine the sign of the charges moving through a conductor.
From playlist PHYSICS E&M 3: MAGNETIC FIELDS, MAGNETIC FORCES, MAGNETIC FIELD SOURCES, ELECTROMAGNETIC INDUCTION
Photoelectric Effect, Work Function, Threshold Frequency, Wavelength, Speed & Kinetic Energy, Electr
This chemistry video tutorial explains how the photoelectric effect works. It also explains how to use the work function of metals to calculate the threshold frequency and maximum wavelength of light necessary to eject an electron off the surface of an active metal. In addition, it expla
From playlist New AP & General Chemistry Video Playlist
A sample photoelectric effect / work function question with a solution
This video shows you how to use Einsteins equation for the photoelectric effect See www.physicshigh.com for all my videos and other resources. If you like this video, please press the LIKE and SHARE with your peers. And please add a COMMENT to let me know I have helped you. Follow me fac
From playlist Nature of Light
Electric Field (3 of 3) Calculating the Electric Field In Between Two Charges
Explains how to calculate the electric field between two charges and the acceleration of a charge in the electric field. You can see a listing of all my videos at my website, http://www.stepbystepscience.com An electric field is an area that surrounds an electric charge, and exerts force
From playlist Electricity and Magnetism
Here we work through an example to find the maximum kinetic energy of ejected electrons when a metal with a particular work function is illuminated by a broadband source. To support the creation of videos like these, get early access, access to a community, behind-the scenes and more, jo
From playlist Introductory Electromagnetism
Electric Field (2 of 3) Calculating the Magnitude and Direction of the Electric Field
Explains how to calculate the electric field of a charged particle and the acceleration of an electron in the electric field. You can see a listing of all my videos at my website, http://www.stepbystepscience.com An electric field is an area that surrounds an electric charge, and exerts f
From playlist Electricity and Magnetism
Mod-01 Lec-37 Semiconductors (Continued)
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
Particle Physics (35 of 41) What is a Photon? 19. The Magnetic Field Effect
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the effects of the magnetic field in electromagnetic radiation. Next video in the Particle Physics series can be seen at: http://youtu.be/RurZpNnnwds
From playlist PHYSICS 65 PARTICLE PHYSICS
Solid State Physics in a Nutshell: Topic 10.2: Effective mass and holes
In this video, we look back to the impact of an electric field on electrons in a metal and extend these ideas to a semiconductor. From this, the ideas of an effective mass and holes emerge.
From playlist CSM: Solid State Physics in a Nutshell | CosmoLearning.org Physics
Electric Field (1 of 3) An Explanation
Explains how to determine the direction and magnitude of the electric field from charged particles. You can see a listing of all my videos at my website, http://www.stepbystepscience.com An electric field is an area that surrounds an electric charge, and exerts force on other charges in t
From playlist Electricity and Magnetism
Introduction to Solid State Physics, Lecture 14: Semiconductor Devices
Upper-level undergraduate course taught at the University of Pittsburgh in the Fall 2015 semester by Sergey Frolov. The course is based on Steven Simon's "Oxford Solid State Basics" textbook. Lectures recorded using Panopto, to see them in Panopto viewer follow this link: https://pitt.host
From playlist Introduction to Solid State Physics
Quantum Transport, Lecture 1: Introduction
Instructor: Sergey Frolov, University of Pittsburgh, Spring 2013 http://sergeyfrolov.wordpress.com/ Summary: In this lecture the notion of quantum transport is defined, the interest in quantum transport is motivated and key experiments in the field are highlighted. Quantum Transport course
From playlist Quantum Transport
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
Jay Deep Sau - The return of Majorana : the end of a 75 year-old search
PROGRAM: The ICTS Condensed Matter Programme 2011 Venue: Indian Insitute of Science, Bangalore Date: Friday 09 Dec, 2011 - Thursday 22 Dec, 2011 DESCRIPTION: The ICTS Condensed Matter Programme 2011 (ICMP 2011) consists of a 10 day Winter School (December 9 to December 18) followed by a 4
From playlist The ICTS Condensed Matter Programme 2011
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
Mod-04 Lec-38 Optical Properties - II
Nano structured materials-synthesis, properties, self assembly and applications by Prof. A.K. Ganguli,Department of Nanotechnology,IIT Delhi.For more details on NPTEL visit http://nptel.ac.in
Quantum Transport, Lecture 20: Majorana fermions
Instructor: Sergey Frolov, University of Pittsburgh, Spring 2013 http://sergeyfrolov.wordpress.com/ Summary: Kitaev's model, Majorana's in nanowires, experimental results from Delft. Quantum Transport course development supported in part by the National Science Foundation under grant DMR C
From playlist Quantum Transport
Schrodingers Equation and the Infinite Potential Well
https://www.patreon.com/edmundsj If you want to see more of these videos, or would like to say thanks for this one, the best way you can do that is by becoming a patron - see the link above :). And a huge thank you to all my existing patrons - you make these videos possible. In this video
From playlist Electronics I: Semiconductor Physics and Devices
Want to know how a solar cell works. Here is a summary of how a solar cell functions, utilising two key physics concepts - semiconductors and the Photoelectric Effect 👍 Really like this video? Support by buying me a coffee ☕️ - www.buymeacoffee.com/physicshigh Subscribe - www.youtube.c
From playlist Nature of Light