Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
Classical Physics
Quantum Physics
Quantum Interpretations
Special and General Relativity
Atomic and Condensed Matter
Nuclear and Particle Physics
Beyond the Standard Model
Cosmology
Astronomy and Astrophysics
Other Physics Topics
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
Classical Physics
Quantum Physics
Quantum Interpretations
Special and General Relativity
Atomic and Condensed Matter
Nuclear and Particle Physics
Beyond the Standard Model
Cosmology
Astronomy and Astrophysics
Other Physics Topics
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Physics
Atomic and Condensed Matter
How is a top gate used to change electron density?
Reply to thread
Message
[QUOTE="hokhani, post: 5477430, member: 291720"] I think generation of higher voltage can be done 1) with carrier source or 2) by an electric filed. Both viewpoints give the same result: 1) A region with higher voltage (such a gate) includes more density of electrons provided by a source, in other words, Fermi level is higher there. In contact with a semiconductor, electrons diffuse into it. 2) In a region with higher potential, the bands are shifted up (due to an electric field) and so do the electrons. Hence, Fermi energy is higher compared to the next region which causes diffusion. [/QUOTE]
Insert quotes…
Post reply
Forums
Physics
Atomic and Condensed Matter
How is a top gate used to change electron density?
Back
Top