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Investigators from University of Basel Target Applied Surface Science (Hematite nanostructuring using electrohydrodynamic lithography)

July 4, 2014



By a News Reporter-Staff News Editor at Science Letter -- Researchers detail new data in Science. According to news originating from Basel, Switzerland, by NewsRx correspondents, research stated, "Tailoring hematite thin film nanostructure is particularly interesting since this oxide's function is closely related to its structure, for example when implemented as a photoanode in water splitting solar cells. In this study, electrohydrodynamic destabilization was designed to grow hematite nanodroplets with morphologies controlled by a master electrode."

Our news journalists obtained a quote from the research from the University of Basel, "A polymer/iron salt film was destabilized by electrohydrodynamic destabilization and the resulting structures were pyrolysed to achieve crystalline a-Fe203 nanodroplets of 30 nm height and 70 nm radius. NEXAFS spectroscopy proved that the structures contain ferrihydrite, which is converted into hematite during pyrolysis, while the polymer was decomposed. Homogeneous nanoparticle precipitation in the bulk of the polymer, due to encapsulation of the iron precursor in the polymer matrix, is accounted for the good preservation of the structures."

According to the news editors, the research concluded: "This study represents the first step towards the use of electrohydrodynamic destabilization for nanostructuring of hematite thin films, with a control over the feature size."

For more information on this research see: Hematite nanostructuring using electrohydrodynamic lithography. Applied Surface Science, 2014;305():62-66. Applied Surface Science can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Applied Surface Science - www.elsevier.com/wps/product/cws_home/505669)

The news correspondents report that additional information may be obtained from F. Boudoire, University of Basel, Dept. of Chem, CH-4056 Basel, Switzerland. Additional authors for this research include R. Toth, J. Heier, A. Braun and E.C. Constable (see also Science).

Keywords for this news article include: Basel, Europe, Science, Switzerland

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Source: Science Letter