Description
of the contents, the work-plan, the
steps, the approach or the methodology:
Impedance spectroscopy is used for
characterisation of electrical and
electrochemical properties of various
systems: ionic and mixed ionic-electronic
conductors, dielectrics and ferroelectrics,
polymers, glasses, semiconductor junctions,
electrochemical cells, batteries,
fuel cells, sensors, etc. Scientists
in the Centre have expertise in measurement,
analysis and modelling of impedance
spectra. Impedance spectroscopy has
been used in the Centre to investigate
ionic and mixed ionic-electronic conductors:
single crystals, ceramic, glasses,
polymers, nano-structured materials,
which are of interest because of prospective
application in batteries, fuel cells,
sensors and gas separators. The other
field of research is study of semiconductor
structures developed for photovoltaic
devices. Several automated set-ups
for measurement of impedance have
been built in the Centre and software
for analysis of spectra has been developed.
Expert scientists and advanced equipment
open possibilities for training young
scientists.
International workshop on "Impedance
Spectroscopy for Characterization
of Materials and Structures"
took place 24-28 September 2003 at
the Faculty of Physics, Warsaw University
of Technology. It gathered more than
70 participants from 14 countries.
The program concentrated mainly on
two topics: (1) experimental methods
and data analysis, (2) physical interpretation
and modelling of impedance spectra.
The workshop included invited lectures
by leading experts in the field of
impedance spectroscopy, contributed
oral presentations, two poster sessions
and a special panel devoted to demonstration
of fitting software.
Extended abstracts of all contributions
were published in a Booklet of Abstracts
and were distributed among the participants
of the Workshop. Full papers appeared in
a special issue of the "Solid State Ionics"
journal: Solid State Ionics 176 [25-28] (2005).
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