Difference between revisions of "Template:Band structure filling diagram"
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imported>Gilliam m (Reverted edits by 27.34.20.207 (talk) to last version by 128.195.98.183) |
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In [[insulator (electricity)|insulator]]s and [[semiconductor]]s the Fermi level is inside a [[band gap]]; however, in semiconductors the bands are near enough to the Fermi level to be [[Fermi-Dirac statistics|thermally populated]] with electrons or [[electron hole|hole]]s. | In [[insulator (electricity)|insulator]]s and [[semiconductor]]s the Fermi level is inside a [[band gap]]; however, in semiconductors the bands are near enough to the Fermi level to be [[Fermi-Dirac statistics|thermally populated]] with electrons or [[electron hole|hole]]s. | ||
{{ed right|Band structure filling diagram}} | {{ed right|Band structure filling diagram}} | ||
| − | ] | + | ] That's is the main point of semiconductor. |
Revision as of 11:48, 21 June 2019
[[File:Band filling diagram.svg|thumb|right|300px|Filling of the electronic states in various types of materials at equilibrium. Here, height is energy while width is the density of available states for a certain energy in the material listed. The shade follows the Fermi–Dirac distribution (black = all states filled, white = no state filled). In metals and semimetals the Fermi level EF lies inside at least one band. In insulators and semiconductors the Fermi level is inside a band gap; however, in semiconductors the bands are near enough to the Fermi level to be thermally populated with electrons or holes.
] That's is the main point of semiconductor.