localized exciton

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• exciton — [ek sī′tän, ek′sə tän΄] n. a localized, electrically neutral, excited state that allows the transfer of energy but not electric charge through a semiconductor, insulator, etc., as an electron bound to a positive hole excitonic adj …   English World dictionary

• exciton — /ik suy ton, ek si ton /, n. Physics. a localized, mobile excited state of a crystal, consisting of an electron and a hole bound together. [1935 40; EXCIT(ED) or EXCIT(ATION) + ON1] * * * ▪ physics       the combination of an electron and a… …   Universalium

• Davydov soliton — Side view of an α helix of alanine residues in atomic detail. Protein α helices provide substrate for Davydov soliton creation and propagation. Davydov soliton is a quantum quasiparticle representing an excitation propagating along the protein α… …   Wikipedia

• XANES — X ray Absorption Near Edge Structure (XANES), also known as Near edge X ray absorption fine structure (NEXAFS) is a type of absorption spectroscopy. NEXAFS also at times used the abbreviation EXAFS. XANES data indicate the absorption peaks due to …   Wikipedia

• crystal — crystallike, adj. /kris tl/, n., adj., v., crystaled, crystaling or (esp. Brit.) crystalled, crystalling. n. 1. a clear, transparent mineral or glass resembling ice. 2. the transparent form of crystallized quartz. 3. Chem., Mineral. a solid body… …   Universalium

• Crystal — /kris tl/, n. 1. a city in SE Minnesota, near Minneapolis. 25,543. 2. a female given name. * * * I Any solid material whose atoms are arranged in a definite pattern and whose surface regularity reflects its internal symmetry. Each of a crystal s… …   Universalium

• radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium

• Polymer solar cell — Polymer solar cells are a type of organic solar cell: they produce electricity from sunlight. A relatively novel technology, they are being researched by universities, national laboratories and several companies around the world. Device physics… …   Wikipedia

• Wannier function — The Wannier functions are a complete set of orthogonal functions used in solid state physics. They were introduced by Gregory Wannier. [http://dx.doi.org/10.1103/PhysRev.52.191 The structure of electronic excitation levels in insulating crystals …   Wikipedia

• Photon — This article is about the elementary particle of light. For other uses, see Photon (disambiguation). Photon Photons emitted in a coherent beam from a laser Composition Elementary particle …   Wikipedia

• Richard Liboff — Richard L. Liboff is a U.S. physicist who has authored five books and nearly 150 other publications in variety of fields, including plasma physics, planetary physics, cosmology, quantum chaos, and quantum billiards.He earned his Ph.D., 1961 from… …   Wikipedia