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Electronic band structure information


In solid-state physics, the electronic band structure (or simply band structure) of a solid describes the range of energy levels that electrons may have within it, as well as the ranges of energy that they 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.).

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Electronic band structure

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In solid-state physics, the electronic band structure (or simply band structure) of a solid describes the range of energy levels that electrons may have...

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Band gap

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a band gap, also called a bandgap or energy gap, is an energy range in a solid where no electronic states exist. In graphs of the electronic band structure...

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Valence and conduction bands

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lowest range of vacant electronic states. On a graph of the electronic band structure of a semiconducting material, the valence band is located below the...

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Crystal structure

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The crystal structure and symmetry play a critical role in determining many physical properties, such as cleavage, electronic band structure, and optical...

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Electron hole

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crystals, electronic band structure calculations lead to an effective mass for the electrons that is typically negative at the top of a band. The negative...

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Absorption band

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molecular micro environments further broaden the structure to give smooth bands. Electronic transition bands of molecules may be from tens to several hundred...

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Transition metal dichalcogenide monolayers

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frequency can be doubled. an electronic band structure with direct energy gaps, where both conduction and valence band edges are located at the non-equivalent...

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Mott insulator

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determine the electronic structure of strongly correlated materialsPages displaying wikidata descriptions as a fallback Electronic band structure – Describes...

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Band

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communication Band cell, a type of white blood cell Bird banding, placing a numbered metal band on a bird's leg for identification Electronic band structure of electrons...

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Fermi level

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relates to electronic band structure in determining electronic properties; how it relates to the voltage and flow of charge in an electronic circuit—is...

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Semiconductor

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Pauli exclusion principle). These states are associated with the electronic band structure of the material. Electrical conductivity arises due to the presence...

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Dirac cone

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In physics, Dirac cones are features that occur in some electronic band structures that describe unusual electron transport properties of materials like...

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Tight binding

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tight-binding model (or TB model) is an approach to the calculation of electronic band structure using an approximate set of wave functions based upon superposition...

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KKR

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Afro-Asiatic language Korringa–Kohn–Rostoker method, a method used in electronic band structure calculations All pages with titles containing KKR This disambiguation...

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Band diagram

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bending. Rather, band bending refers to the local changes in electronic structure, in the energy offset of a semiconductor's band structure near a junction...

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Free electron

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with an atom Valence and conduction bands, as a conduction band electron relative to the electronic band structure of a solid Fermi gas, as a particle...

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Surface states

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change of the electronic band structure from the bulk material to the vacuum. In the weakened potential at the surface, new electronic states can be formed...

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Surface properties of transition metal oxides

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that it has a lower concentration of Lewis acid sites. The bulk electronic band structure of transition metal oxides consists of overlapping 2p orbitals...

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Density of states

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dispersion relation for electrons in a solid is given by the electronic band structure. The kinetic energy of a particle depends on the magnitude and...

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Band bending

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In solid-state physics, band bending refers to the process in which the electronic band structure in a material curves up or down near a junction or interface...

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Metalloid

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than in chemistry. In physics, it refers to a specific kind of electronic band structure of a substance. In this context, only arsenic and antimony are...

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Valence bond theory

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Cooper, David L.; Gerratt, Joseph; Raimondi, Mario (1986). "The electronic structure of the benzene molecule". Nature. 323 (6090): 699. Bibcode:1986Natur...

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Valleytronics

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extrema ("valleys") in the electronic band structure. Certain semiconductors have multiple "valleys" in the electronic band structure of the first Brillouin...

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Energy gap

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but also for insulators and metals the band structure—and thus any possible band gaps—govern their electronic properties. For superconductors the energy...

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Brillouin zone

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Setyawan, Wahyu; Curtarolo, Stefano (2010). "High-throughput electronic band structure calculations: Challenges and tools". Computational Materials Science...

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DFTB

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The Density Functional Based Tight Binding method is an approximation to density functional theory, which reduces the Kohn-Sham equations to a form of...

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Graphene

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and glassy carbon. The valence band is touched by a conduction band, making graphene a semimetal with unusual electronic properties that are best described...

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Cubic crystal system

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Haddadi, K.; Maouche, D.; Ali Sahraoui, F.; Hachemi, A. (2008). "Electronic band structure of calcium selenide under pressure". Physica B: Condensed Matter...

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Electronic properties of graphene

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is confined, in which case it is referred to as a nanoribbon, its electronic structure is different. If it is "zig-zag" (diagram), the bandgap is zero....

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