Wroclaw University of Technology De Gruyter Open Materials Science
Materials ScienceAn interdisciplinary journal devoted to Microsystem Electronics and Photonics
Aims and Scope Editorial Board Accepted Papers Current Issue Back Issues Instructions for Authors Copyright Information Permissions for reprinting Distribution & Subscription

Back Issues


The section contains back issues papers
of Materials Science-Poland.


EXAFS/XANES studies of the local structure of amorphous ionic and electronic-ionic conductors

M. Wasiucionek, J. Garbarczyk, R. Bacewicz, P. Jozwiak, J. L. Nowinski
Faculty of Physics, Warsaw University of Technology, Warsaw, Poland

Abstract

X-ray absorption spectroscopy methods such as EXAFS (Extended X-ray Absorption Fine Structure) and XANES (X-ray Absorption Near Edge Structure) are sophisticated and effective tools for studying the local structure of many solids and liquids. Their use is particularly valuable in the case of amorphous systems, in which due to the absence of long-range order the possibilities of structure determination by diffraction methods are limited. EXAFS and XANES have been extensively used to study the local structure of many electrically conducting (via ions, electrons, or both electrons and ions) solids. The special merit of the latter studies is that their results reveal the short-range structure of these conductors, which is an important factor determining their transport properties. The paper reports recent results of EXAFS/XANES studies on the local structure of selected electrically conducting glasses of the Li2O-V2O5-P2O5 system and their silver analogues. All spectra were acquired at the K-edge of vanadium.

 Hide abstract  pdf Download article (PDF)



-