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    Optical, morphological and structural characterization of Langmuir–Schaefer films of a functionalized copper phthalocyanine

    Year: 2011

    Journal: Journal of Colloid and Interface Science, 2011, 363 (1), 199-205, 20131009

    Authors: Gabriele Giancane, Emanuela Filippo, Daniela Manno, Antonio Serra, Ludovico Valli

    Organizations: Università del Salento, Dipartimento di Ingegneria dell’Innovazione, Via Monteroni, 73100 Lecce, Italy; Università del Salento, Dipartimento di Scienze dei Materiali, Via Monteroni, 73100 Lecce, Italy

    Langmuir–Schaefer (LS) films of copper(II) tetrakis-(isoprpoxy-carbonyl)-phthalocyanine (TiPCuPc) have been deposited onto various solid supports. Its floating film have been characterized at the air–water interface by means of Brewster Angle Microscopy and Langmuir curves. Vibrational modes of multilayer transferred LS film have been studied by Raman spectroscopy and the optical parameters (refractive index n and extinction coefficient k) have been determined in the visible range of the electromagnetic spectrum. Linearly polarized light absorbance measurements have been performed at room temperature in the 400–800 nm spectral range and the average orientation of the phthalocyanine rings have been estimated. Transmission electron microscopy has been also used to characterize the morphological properties of the LS film and a close packed arrangement of the deposited molecules has been observed.