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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 19, Number 1
BKCSDE 19(1)
January 20, 1998 

RF Sputtered SnO2, Sn-Doped In2O3 and Ce-Doped TiO2 Films as Transparent Counter Electrodes for Electrochromic Window
Young-Il Kim, Joo-Byoung Yoon, Jin-Ho Choy*, Guy Campet, Didier Camino, Josik Portier, Jean Salardenne
The SnO2, Sn-doped In2O3 and Ce-doped TiO2 films have been prepared by RF sputtering method, and their opto-electrochemical properties were investigated in view of the applicability as counter electrodes in the electrochromic window system. These oxide films could reversibly intercalate Li+ ions owing to the nanocrystalline texture, but remained colorless and transparent. The high transmittance of the lithiated films could be attributed to the prevalence of the Sn4+/Sn2+ and Ce4+/Ce3+ redox couples having 5s and 6s character conduction bands, respectively. For the Ce-doped TiO2 film, (TiO2)1-x(CeO2)x, an optimized electrochemical reversibility was found in the film with the composition of x = 0.1.
107 - 109
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