title: Spectroscopic investigation of different concentrations of the vapour deposited copper phthalocyanine as a "guest" in polyimide matrix.
abstract: Nanocomposite layers 250 nm copper phthalocyanine/polyimide prepared by simultaneous vapour deposition of three different sources were studied. Different concentrations of copper phthalocyanine as a "guest" in polyimide matrix as a function of conditions of the preparation have been determined by FTIR (Fourier Transform Infrared) and UV-VIS (Ultraviolet-Visible) spectroscopies. The aim was to estimate the possibility of the spectroscopic methods for quantitative determination of the "guest" and compare with the quality of the polyimide thin films in relation to the "guest" concentration. The band at 1334 cm(-1) has been used for quantitative estimation of "guest" in polyimide matrix. The concentrations of the copper phthalocyanine less than 20% require curve fitting techniques with Fourier self deconvolution. The relationship between "guest" concentrations and degree of imidization, as well as the electronic UV-VIS spectra are discussed in relation to the composition, imidization degree and the two crystallographic modification of the embedded chromophore.
authors: University of Chemical Technology and Metallurgy, Department of Organic Chemistry, 8 St. "Kliment Ohridski" Blvd., 1756 Sofia, Bulgaria. Electronic address: antonchem@abv.bg.
authors: Anton
authors: A
authors: Georgiev
authors: Institute of Organic Chemistry with Centre of Phytochemistry, Laboratory of Chemistry and Biophysics of Proteins and Enzymes, Bulgarian Academy of Science, 9 "Acad. G. Bonchev" Blvd., Sofia 1113, Bulgaria.
authors: Dancho
authors: D
authors: Yordanov
authors: Institute of Optical Materials and Technologies "Acad. Jordan Malinovski", Department of "Nanostructured Materials and Technology", Bulgarian Academy of Science, 109 "Acad. G. Bonchev" Blvd., 1113 Sofia, Bulgaria.
authors: Dean
authors: D
authors: Dimov
authors: Institute of Optical Materials and Technologies "Acad. Jordan Malinovski", Department of "Nanostructured Materials and Technology", Bulgarian Academy of Science, 109 "Acad. G. Bonchev" Blvd., 1113 Sofia, Bulgaria.
authors: Jacob
authors: J
authors: Assa
authors: Institute of Optical Materials and Technologies "Acad. Jordan Malinovski", Department of "Nanostructured Materials and Technology", Bulgarian Academy of Science, 109 "Acad. G. Bonchev" Blvd., 1113 Sofia, Bulgaria.
authors: Erinche
authors: E
authors: Spassova
authors: Institute of Optical Materials and Technologies "Acad. Jordan Malinovski", Department of "Nanostructured Materials and Technology", Bulgarian Academy of Science, 109 "Acad. G. Bonchev" Blvd., 1113 Sofia, Bulgaria.
authors: Gencho
authors: G
authors: Danev
mesh_terms: D007094:Imides / Q000737:chemistry*; D007211:Indoles / Q000737:chemistry*; D008958:Models, Molecular; D053761:Nanocomposites / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D014835:Volatilization
chemical_list: D007094:Imides; D007211:Indoles; D009942:Organometallic Compounds; C015445:copper phthalocyanine
keywords: Copper phthalocyanine; FTIR spectroscopy; Nanochemistry; Nanocomposites; Polyimides; Thin solid films