This review summarizes the progress on basic understanding and applications of volume transport protons in fluorite pyrochlore oxides, discusses present problems challenges ahead.

INTRODUCTION The research made in this PhD thesis fits the current trend in the development of new advanced composite electrode materials with high performance and parameters. The composite materials has new physical and chemical properties that are not present in its components taken individually. The new electrode materials were obtained by combination of conducting polymers, such as polypyrr...

Transparent conducting oxides (TCOs) play an essential role in modern optoelectronic devices through their combination of electrical conductivity and optical transparency. We review recent progress in our understanding of multi-component TCOs formed from solid solutions of ZnO, In(2)O(3), Ga(2)O(3) and Al(2)O(3), with a particular emphasis on the contributions of materials modelling, primarily ...

Wood and cellulose derivatives, in both fibrous and water-soluble macromolecular form, are emerging as outstanding candidates for organic electronics applications due to their large-scale availability, low cost, and easy processability. Paper and wood fibre-based derivatives are considered to be materials of choice as supports for communication world-wide. The interest in producing inexpensive ...

In this paper we study the realizability of a given smooth periodic gradient field ∇u defined in R, in the sense of finding when one can obtain a matrix conductivity σ such that σ∇u is a divergence free current field. The construction is shown to be always possible locally in R provided that ∇u is non-vanishing. This condition is also necessary in dimension two but not in dimension three. In fa...

The paper critically reviews some recent developments in the field of electrically conducting polymers which have grown very rapidly since the discovery that there is a very sharp increase in conductivity when intrinsically insulating organic conjugated polymers such as, polyacetylene are doped with oxidizing or reducing agents. These polymers, also called synthetic metals, combine the electric...