AMORPHOUS, VITREOUS, AND ORGANIC SEMICONDUCTORS Vibronic States in Organic Semiconductors Based on NonMetal Naphthalocyanine. Detection of Heterocyclic Phthalocyanine Compounds in a Flexible Dielectric Matrix

The vibronic properties of semiconductor structures based on nonmetal naphthalocyanine mol� ecules are studied using IR and Raman spectroscopy methods. New absorption lines in the transmission spec� tra of such materials are detected and identified. Three transmission lines are observed in the range 2830- 3028 cm -1 , which characterize carbon-hydrogen bonds of peripheral molecular groups. Their spectral posi� tions are 2959, 2906, and 2866 cm -1 . It is detected that the phthalocyanine ring can also exhibit its specific vibronic properties in the Raman spectra at 767, 717, and 679 cm -1 . The naphthalocyanine molecule in the organic dielectric matrix of microfibers is described using IR spectroscopy. It is shown that the set of vibra� tions characterizing the isoindol group, pyrrole ring, naphtha group, and C-H bonds, allows an accurate enough description of the vibronic states of the naphthalocyanine complex in complex heterostructures to be made. The spectral range with fundamental modes, characterizing a naphthalocyanine semiconductor in a heterostructure, is 600-1600 cm -1 . A comparison of the compositions of complex systems with a similar het� erostructure containing lutetium diphthalocyanine demonstrated few errors.