Electrochromism in sol-gel films of Nb2O5

Autor:	Avellaneda, César O., Macedo, Marcelo A., Aegerter, Michel A.
Rok vydání:	1994
Předmět:	Einschiebungsreaktion Dünne Schicht ddc:500 Lithiumion Kompression ddc:620 Sol-Gel-Verfahren
DOI:	10.22028/D291-24174
Popis:	Thin films of Nb2O5 were synthesized via the sol-gel process. The films showed electrochromism when Li+ ions are inserted in their structural networks. The reversibility of the insertion process is above 95% accompanied by a good variation in optical transmission of about 80% in the transparent state and 20% in the colouring state (dark blue) in the visible range. The influence of the densification temperature of the films on the Li+ insertion through measured by cycle voltammetry is discussed. The results indicate that Nb2O5 is an excellent material for electrochromic devices.
Databáze:	OpenAIRE
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