Microscopic models for conductivity in solid electrolytes
✍ Scribed by H.R. Zeller; H.U. Beyeler; P. Brüesch; L. Pietronero; S. Strässler
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 579 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0013-4686
No coin nor oath required. For personal study only.
✦ Synopsis
Abetract -We dkuss microscopic models for ionic conductivity with emphasis on material independent general results. Correlated motion of particles catt be experimentally invcstigakzd by studying the frequency dcpcndeat conductivity a(o). We start the discussion with the simplest single particle jump diffusion model and then proceed to more advanced descriptions. All models which derive B(W) from the equilibrium transition rates contain no memory dfccts by construction. It can be shown that the correlated motion of interacting particles with no memory elicctsis always backward and [du(o)]/do 2 0. Experimentally [da(w)]/dw < 0 is found in Ag+ and Cu+ conductors and we discuss a model which allows for memory effects by coupling between diffusion and long lived vibrational fluctuations.
📜 SIMILAR VOLUMES
## AbetractSome aspects of the phenomenological theory of space charge phenomena, developed by the authors, are discussed. The theory is based on the local representation of migration and diffusion currents, written in a form able to take into account in a general manner the specificity of conduct
## Abstract We developed an ionic conductivity model of solid polymer electrolytes for dye‐sensitized solar cells (DSSCs) based on the Nernst–Einstein equation in which the diffusion coefficient is derived from the molecular thermodynamic model. We introduced concentration‐dependence of the diffusi
Poly(itaconic acid) esters with oligo(ethylene oxide) side chains can form amorphous solid solutions with LiClO 4 and NaClO 4 . Many research groups have examined AC ionic conductivities of these polymer/salt mixtures as a function of side-chain length and salt concentration. We propose a model to i