Abstract
In the present contribution, bare and composite Mn3O4 (Mn3O4-X, with X = Ag, Au, or TiO2) thin films were fabricated by a two-step vapor-phase route, consisting in: (1) chemical vapor deposition of Mn3O4 on Si(100) substrates starting from a fluorinated β-diketonate diamine Mn(II) complex; (2) introduction of silver, gold, or titania by means of radio frequency (RF)-sputtering. The obtained results evidenced the formation of phase-pure α-Mn3O4 thin films chemically modified with fluorine, which after RF-sputtering yielded Mn3O4-X nanocomposite systems with tailored properties. In this work, data obtained by x-ray photoelectron spectroscopy characterization of the surface chemical composition are presented and discussed for bare and functionalized Mn3O4 systems. In addition to wide scan spectra, particular attention is dedicated to the analysis of C 1s, O 1s, Mn 2p, Mn 3s, F 1s and, eventually, Ag 3d, Au 4d5/2, and Ti 2p core levels, as well as silver Auger signal. In the case of the Mn3O4-Au system, a quantification procedure aimed at circumventing problems arising from the overlap of Mn 2p/Au 4p1/2 and Mn 3s/Au 4f signals is proposed.
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