Journal of Colloid and Interface Science, Vol.363, No.1, 199-205, 2011
Optical, morphological and structural characterization of Langmuir-Schaefer films of a functionalized copper phthalocyanine
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 IS film and a close packed arrangement of the deposited molecules has been observed. (C) 2011 Elsevier Inc. All rights reserved.
Keywords:Langmuir-Schaefer films;Optical characterization;Structural properties;Transmission electron microscopy