Room-temperature synthesis and characterization of porous CeO2 thin films

✍ Scribed by Chu, Dewei ;Masuda, Yoshitake ;Ohji, Tatsuki ;Kato, Kazumi

• Book ID: 105366580
• Publisher: John Wiley and Sons
• Year: 2011
• Tongue: English
• Weight: 499 KB
• Volume: 209
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.201127291

✦ Synopsis

Abstract

CeO~2~ thin films with hexagonal‐shaped pores were successfully prepared by a facile electrodeposition at room temperature combined with an etching process. By using electrodeposited ZnO nanorods as a soft template, the morphology, and microstructure of the CeO~2~ could be controlled. TEM observation indicated that as‐prepared CeO~2~ film is composed of nanocrystals with average size of several nanometers, while XPS analysis showed the coexistence of Ce^3+^ and Ce^4+^ in the film. The photoluminescence properties of CeO~2~ films were measured, which showed much higher sensitivity compared to bare substrate.