Electron crystal phonon glass
WebThe efficient conversion of heat into electricity using a thermoelectric approach requires high performance materials with the thermoelectric figure of merit ZT ≥ 1. Here we report on bulk CuCrSe2, which exhibits a very … WebOct 7, 2013 · electron crystal (PGEC) was introduced by G. A. Slack, according to which an e ffi cient thermoelectric material should exhibit a very low k like glassy materials and a low r like single crystals.
Electron crystal phonon glass
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WebApr 26, 2024 · An ideal material for thermoelectric efficiency is the phonon glass–electron crystal, which drives research on strategies to scatter or localize phonons while minimally disrupting electronic ... WebFeb 12, 2024 · Cu 2 SnSe 3 has been considered as a potential thermoelectric material owing to its tunable transport properties and its phonon-glass-electron-crystal (PGEC) characteristics. Here, p-type pure and In-doped Cu 2 SnSe 3 samples are synthesized by the solid-state sintering technique. Cubic structure with \(F\overline{4}3m\) space group …
WebSKUTTERUDITES: A Phonon-Glass-Electron Crystal Approach to Advanced Thermoelectric Energy Conversion Applications Annual Review of Materials Research Home Annual Review of Materials Science Volume 29, 1999 Nolas, pp 89-116 SKUTTERUDITES: A Phonon-Glass-Electron Crystal Approach to Advanced … WebJun 13, 2013 · This situation is achievable by enhancing phonon scattering through specific structural disorder (phonon glass) that also retains sufficient electron mobility (electron crystal). It is demonstrated that the quantitative acquisition of multiple annular-dark-field images via scanning transmission electron microscopy at different scattering-angles ...
WebNov 20, 2015 · Twenty years ago, the 'phonon-glass, electron-crystal' concept changed thinking in thermoelectric materials research, resulting in new high-performance … Web1. High crystal symmetry with the electronic bands near the Fermi level and many valleys. 2. Heavy element compounds with small electronegativity differences between …
WebThe general phonon-glass electron-crystal strategy is to disrupt phonon transport without affecting electron transport. Disruption of phonon thermal conductivity by alloying and …
WebFeb 24, 2014 · The concepts of phonon-glass electron-crystal: Exploring efficient thermoelectric materials 671 II. Background on Thermoelectricity 671 A. The Wiedemann-Franz law and the Lorenz number 671... palms bible versesWebFeb 24, 2014 · Phonon-glass electron-crystal thermoelectric clathrates: Experiments and theory. Toshiro Takabatake, Koichiro Suekuni, Tsuneyoshi Nakayama, Eiji Kaneshita. Type-I clathrate compounds have attracted a great deal of interest in connection with the search for efficient thermoelectric materials. These compounds constitute networked … seroquel xr glutenWebNov 28, 2003 · The concept of a phonon-glass electron-single-crystal (PGEC), first intro- duced by Slack and giv en in detail in a review (15), is at the heart of the in vesti- gation … palms at riviera dunesWebOct 1, 2024 · These materials are characterized by coherent band transport expected from crystalline semiconductors, but dielectric responses and phonon dynamics typical of liquids. This “crystal-liquid”... palms banquet hallWebThe concept of the phonon-glass electron-crystal coined by Slack(1995)isactually asummaryofideasdiscussed byIoffe in the 1950s (Ioffe, 1958a; Vedernikov and Iordanishvili, 1998).Ingeneral,glassesandamorphousmaterials,havingno periodic arrangement of atoms, show the lowest thermal palms banquet and center 45WebOct 13, 2024 · This "crystal-liquid" duality implies that lead halide perovskites belong to phonon glass electron crystals, a class of materials believed to make the most efficient thermoelectrics. We show that the crystal-liquid duality and the resulting dielectric response are responsible for large polaron formation and screening of charge carriers, leading ... seroquel sprinklesWebWe report electron-doped AgBi3S5 as a new high performance nontoxic thermoelectric material. This compound features exceptionally low lattice thermal conductivities of 0.5-0.3 W/m/K in the temperature range of 300-800 K, which is ascribed to its unusual vibrational properties: “double rattling” phonon modes associated with Ag and Bi atoms. palms cell phones