Electrical Conduction Model for Disordered Carbons
نویسندگان
چکیده
منابع مشابه
Thermodynamics of Lithium Intercalation into Graphites and Disordered Carbons
The temperature dependence of the open-circuit potential of lithium half-cells was measured for electrodes of carbon materials having different amounts of structural disorder. The entropy of lithium intercalation, DS , and enthalpy of intercalation, DH , were determined over a broad range of lithium concentrations. For the disordered carbons, DS is small. For graphite, an initially large DS dec...
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Raman spectroscopy is a very popular, non-destructive tool for the structural characterisation of carbons. Raman scattering from carbons is always a resonant process, in which those configurations whose band gaps match the excitation energy are preferentially excited. The Raman spectra of carbons do not follow the vibration density of states, but consist of three basic features, the G and D pea...
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The modem theory of electrical conduction in metals, according to which the metal is dissociated to give a positive ion of low mobility, which is characteristic of the metal, and a negative carrier of high mobility, which is common to all metals and presumably to be identified with the electron, has given rise to certain misgivings, despite the complete analogy between this theory and the accep...
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Composite systems constitute a large class of naturally occurring or artificially synthesized disordered systems [1]. The systems are microscopically inhomogeneous and disordered but look homogeneous on the macroscopic scale. From the tunnelling electron micrographs (TEM) of such a composite material it can be seen that the typical dimension (ξ) of metallic islands embedded in the insulating ma...
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ژورنال
عنوان ژورنال: TANSO
سال: 1993
ISSN: 1884-5495,0371-5345
DOI: 10.7209/tanso.1993.82