Fast ionic silver and lithium conduction in glasses

Ionic transport in AgI‐HgS‐As2S3 glasses: Critical percolation and modifier‐controlled domains

“…that assumes a straight‐line behavior on a semilogarithmic scale (Figure A). Similar results were reported elsewhere . In region B, the isolated edge‐sharing dimers ES‐Ag 2 I 2 S 4/2 ( x ≤ 0.1‐0.2) no longer exist, and we assumed a primary building block is the interconnected tetrahedral (AgI 2/2 S 2/2 ) n chains in which the central Ag atom has two iodine and two sulfur nearest‐neighbor species.…”

“…Similar results were reported elsewhere. 20,26,[36][37][38][39][40][41] In region B, the isolated edge-sharing dimers ES-Ag 2 I 2 S 4/2 (x ≤ 0.1-0.2) no longer exist, and we assumed a primary building block is the interconnected tetrahedral (AgI 2/2 S 2/2 ) n chains in which the central Ag atom has two iodine and two sulfur nearest-neighbor species. A clear evidence in favor of (AgI 2/2 S 2/2 ) n chains yields Raman spectroscopy.…”

Bond character, optical properties and ionic conductivity of Li2O/B2O3/SiO2/Al2O3 glass: Effect of structural substitution of Li2O for LiCl

“…Such weak connection is important to obtain a high comparably average mobility. Low melting point is responsible for high ionic conductivity [14], therefore, Robert et al [15] suggested that the conductivity could be enhanced by lowering the glass transition temperature. However, an adequate physical explanation of the ionic conductivity is still lacking [16] because of the tendency of low alkali content to phase separation.…”

Chemical and dynamical speciation of mobile ions in the glassy fast ionic conductorAg2S+B2Akai1, Martin2, Borsa3 2000Phys. Rev. B8030View full textAdd to dashboardCite

“…For example, it has been found that the ionic conductivity is progressively increased by using highly polarizable Ag ions, 3 doping of the glass with alkali or silver halides, 4 mixing of the glass formers, 5 and the use of sulfide-based glasses. 6 Unfortunately, it is found that selenide-based glasses, while being a logical extension of this chemical modification of glass, do not provide the increase in the ionic conductivity as might be expected.…”