Authors: Ferraro, John R.; Walling, P. Labonville

Source: Applied Spectroscopy, Volume 35, Issue 2, Pages 149-235 (March/April 1981) , pp. 217-219(3)

Publisher: Society for Applied Spectroscopy

Abstract:

Several new ionic conductors of the type RHI·AgI, where R = substituted pyridinium group, were recently synthesized. Conductivity studies made at high pressures demonstrated diverse responses in the ionic conductivity. Some conductors showed a maxima in ionic conductivity, while others manifested a decrease or were unresponsive to the application of pressure. These changes in conductivity were found to occur without any noticeable phase transitions, as determined by visual microscopic observation, and presumably involve only subtle lattice modifications. It has been suggested that these pressure-induced modifications in the lattice could cause redistributions in the population of different Ag ion sites, and provide more facile ion transport with consequent increased conductivity. The importance of such lattice modifications as one of the criteria for increased conductivity has been cited for related ionic conductors.

Keywords: Organic ammonium silver iodide conductors; Pressure effects on AgI phonon mode; Order-disorder in ionic conductors; Infrared

Document Type: Short communication

DOI: http://dx.doi.org/10.1366/0003702814731725

Affiliations: 1: Loyola University of Chicago, Chemistry Department, Chicago, Illinois 60626

Publication date: 1981-03-01

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