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International Journal of Photoenergy
Volume 4, Issue 1, Pages 1-10

Sol-gel niobium pentoxide coatings: Applications to photovoltaic energy conversion and electrochromism

1Institut für Neue Materialien, INM, Department of Coating Technology, Gebaeude 43, Saarbruecken 66123, Germany
2DIN, Deutsches Institut für Normung e.V., Normenausschuss Materialpruefung (NMP), Burggrafenstraße 6, Berlin D-10787, Germany

Copyright © 2002 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


In the last decade the sol-gel process became a promising method to synthesize materials in form of coatings, nanoscale powders and porous systems. Several products or devices made with such a process already exist on the market. This paper briefly reviews the state of the art in the development of electrochromic coatings and devices and nanocrystalline solar cells achieved during the last decade using sol-gel derived pure and doped niobium pentoxide.