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Oxide nanoparticle thin films created using molecular templates

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Gardener, J. A., Liaw, Irving, Aeppli, Gabriel, Boyd, Ian W., Fiddy, Steven, Hyett, G., Jones, T. S., Lauzurica, S., Palgrave, R. G., Parkin, I. P., Sankar, Gopinathan, Sikora, Marcin, Stoneham, A. M., Thornton, Geoff and Heutz, Sandrine. (2011) Oxide nanoparticle thin films created using molecular templates. The Journal of Physical Chemistry Part C: Nanomaterials, Interfaces and Hard Matter, Vol.115 (No.27). pp. 13151-13157. ISSN 1932-7447

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Official URL: http://dx.doi.org/10.1021/jp200567r

Abstract

We present a new generic method to synthesize nanostructured metal(II) oxide films on a substrate such as silicon. Vacuum ultraviolet (VUV) excimer lamps rupture metal organic precursors, creating volatile organic fragments, while the metal species at the surface form oxides. X-ray photoemission spectroscopy (XPS) and X-ray absorption spectroscopy (XAS) confirm that 172 nm VUV irradiation of manganese and copper phthalocyanines yields manganese(II) and copper(II) oxides, respectively. The morphology of the precursor film provides a template from which metal oxide nanoparticles are formed, which we demonstrate for particles with dimensions 40 x 40 x 10 nm(3). Our procedure is both simple and flexible, with low thermal budget and potential for patterning.

Item Type:

Journal Article

Subjects:

Q Science > QC Physics
Q Science > QD Chemistry
T Technology > TA Engineering (General). Civil engineering (General)

Divisions:

Faculty of Science > Chemistry

Library of Congress Subject Headings (LCSH):

Thin films, Nanostructured materials, Chemical templates, X-ray spectroscopy, Metallic oxides

Journal or Publication Title:

The Journal of Physical Chemistry Part C: Nanomaterials, Interfaces and Hard Matter

Publisher:

American Chemical Society