Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Phases Transition in Carbon-doped Silver Iodide

Version 1 : Received: 8 October 2022 / Approved: 8 October 2022 / Online: 8 October 2022 (10:34:22 CEST)

How to cite: Correa Gallego, H.; Peña Lara, D.; Mosquera-Vargas, E. Phases Transition in Carbon-doped Silver Iodide. Preprints 2022, 2022100098. https://doi.org/10.20944/preprints202210.0098.v1 Correa Gallego, H.; Peña Lara, D.; Mosquera-Vargas, E. Phases Transition in Carbon-doped Silver Iodide. Preprints 2022, 2022100098. https://doi.org/10.20944/preprints202210.0098.v1

Abstract

Silver iodide (AgI) is a system prototype allowing the flow of ions through its structure and has a phase transition at 420 K, characterized by an abrupt change in conductivity and a high ionic conductivity. Introducing low concentrations of graphite (C) into the AgI structure produces a new material with a mixed conductivity (ionic and electronic) which increases with increasing temperature. The experimental results of the logarithm of the ionic conductivity as a function of the inverse of temperature for the (AgI)x–C(1−x) system for low carbon concentrations 0.97 ≤ x ≤ 0.99 were well fitted using a phenomenological model with a probability distribution for the charge carriers based on the carrier density

Keywords

silver iodide; carbon; phenomenological models; transition temperature; ionic conductivity; probability distribution

Subject

Chemistry and Materials Science, Materials Science and Technology

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