Please use this identifier to cite or link to this item: doi:10.22028/D291-24151
Title: Transparent storage layers for H+ and Li+ ions prepared by sol-gel technique
Author(s): Valla, Bruno
Tonazzi, Juan Carlos López
Macedo, Marcelo A.
Dall'Antonia, Luiz H.
Aegerter, Michel A.
Gomes, M. A. B.
Bulhoes, Luis O. S.
Language: English
Year of Publication: 1991
OPUS Source: Optical materials technology for energy efficiency and solar energy conversion X : proceedings ; 25 - 26 July 1991, San Diego, California / Carl M. Lampert ..., chairs/ed. - Bellingham, Wash. : SPIE, 1990. - (SPIE proceedings series ; 1536), S. 48-62
SWD key words: Sol-Gel-Verfahren
DDC notations: 500 Science
Publikation type: Conference Paper
Abstract: Thin layers of mixed oxides CeO2-TiO2 and CeO2-ZrO2 with molar ratio 1:1 have been prepared by sol-gel process using the dip-coating technique. The precursor sols consist of a mixture of nitrate ammonium cerium salt (Ce(NH4)2(NO3)6), zirconium propoxide or tetraisopropyl orthotitanate and ethanol. The thickness of the multilayer films is typically 300nm after densification at 450°C. Their use as transparent H+ and Li+ ions storage electrode (counter electrode) for electrochromic devices is studied by electrochemical voltammetry, impedance and optical spectroscopies. They have typically an optical transmission of 80% in the visible range, do not color after ions insertion and show good electrochemical stability. These layers have been also tested in complete all solid state cell having the configuration /glass/ITO/EC/electrolyte/CeO2-TiO2/ITO/glass/. The electrochromic layer (EC) was either WO3 or polytoluidine. The protonic electrolyte was a cellulose-polyacetate polymer and the lithium electrolyte was PEO-LiN(SO2CF3)2. Their electrochemical, optical and lifetime performance are reported.
Link to this record: urn:nbn:de:bsz:291-scidok-23066
ISBN: 0-8194-0664-3
Date of registration: 24-Aug-2009
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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