Surface decoration of ε-Fe2O3 nanorods by CuO via a two-step CVD/sputtering approach
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Contributors
Abstract
In this paper we report on the first example of Fe2O3/CuO composites fabricated by a two-step vapor-phase synthetic strategy. The target route is based on the CVD of Fe2O3 nanorod arrays on Si(100) at 400°C starting from Fe(hfa)2TMEDA (hfa=1,1,1,5,5,5-hexafluoro-2,4-pentanedionate; TMEDA=N,N,N',N'-tetramethylethylenediamine), followed by radio frequency (RF) copper sputtering for various process durations, and final ex-situ annealing in air. The combined use of complementary structural, morphological, and chemical analyses give evidence of the formation of pure nanocomposite systems, characterized by the presence of the sole ε-Fe2O3 and CuO phases. The unique features of the adopted approach enable an efficient surface decoration of ε-Fe2O3 rods by CuO nanoparticles a few nm in diameter, resulting in an intimate contact between the two oxides, and a CuO content tunable through variations of the sole sputtering time.
Details
Original language | English |
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Pages (from-to) | 313-319 |
Number of pages | 7 |
Journal | Chemical Vapor Deposition |
Volume | 20 |
Issue number | 7-9 |
Publication status | Published - 1 Sept 2014 |
Peer-reviewed | Yes |
Externally published | Yes |
Keywords
ASJC Scopus subject areas
Keywords
- CuO, CVD, Nanocomposites, Sputtering, ε-FeO