Theory of electrons in solids | Wikipedia audio article
Channel: wikipedia tts
Date: 18/02/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Electronic_band_structure


00:00:47 1 Why bands and band gaps occur
00:03:24 2 Basic concepts
00:03:34 2.1 Assumptions and limits of band structure theory
00:06:39 2.2 Crystalline symmetry and wavevectors
00:09:38 2.2.1 Asymmetry: Band structures in non-crystalline solids
00:10:19 2.3 Density of states
00:11:10 2.4 Filling of bands
00:11:13 2.4.1 Names of bands near the Fermi level (conduction band, valence band)
00:13:50 3 Theory in crystals
00:16:01 3.1 Nearly free electron approximation
00:17:45 3.2 Tight binding model
00:20:08 3.3 KKR model
00:25:06 3.4 Density-functional theory
00:25:53 3.5 Green's function methods and the iab initio/i GW approximation
00:28:46 3.6 Mott insulators
00:29:45 3.7 Others
00:30:16 4 Band diagrams
00:30:25 5 See also
00:31:39 6 References
00:33:09 7 Bibliography
00:34:03 8 Further reading



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SUMMARY
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In solid-state physics, the electronic band structure (or simply band structure) of a solid describes the range of energies that an electron within the solid may have (called energy bands, allowed bands, or simply bands) and ranges of energy that it may not have (called band gaps or forbidden bands).
Band theory derives these bands and band gaps by examining the allowed quantum mechanical wave functions for an electron in a large, periodic lattice of atoms or molecules. Band theory has been successfully used to explain many physical properties of solids, such as electrical resistivity and optical absorption, and forms the foundation of the understanding of all solid-state devices (transistors, solar cells, etc.).