Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 22, Issue 19, Pages 9821-9825Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm31244a
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Funding
- DFG
- National Research Council of Science & Technology (NST), Republic of Korea [12-12-N0201-06] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In the present work, we show that metallic Ti thin films on FTO glass can be completely anodized to a mesoporous oxide layer using a glycerol-K2HPO4 electrolyte at elevated temperatures (similar to 180 degrees C). This results in highly transparent mesoporous oxide coated electrodes that provide a significantly enhanced transparency compared with the classic nanoparticle layers or TiO2 nanotube layers. We show that in electrochromic switching experiments these electrodes therefore exhibit a significantly higher contrast compared to other TiO2 nanostructures. Moreover, this type of anodic titania layer is produced in a fluoride-free electrolyte and adheres very well to the FTO glass, both features that are highly beneficial in view of an application in electrochromic devices.
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