Abstract
The paper deals with spectral studies (IR absorption, IR reflection–absorption, Raman scattering, and electronic absorption) of Langmuir–Blodgett layers of selected fullerene–thiophene dyads; some information on preparation and properties of the layers are also given. The spectra were recorded with unpolarised and polarised light (p-polarisation and s-polarisation) to receive data on orientation of the dyads with respect to the solid substrate and on interaction of the dyads with gold substrates. The comparison of the dyad spectra suggests redistribution of charges in both moieties of the dyads after films deposition on the substrate. We have shown that the polarised reflection–absorption spectra of the thin films are strongly dependent on the light polarisation. From the analysis of the data on the basis of the results obtained from various spectral methods it was concluded that the Langmuir–Blodgett layers are ordered and some parts of the dyads are oriented.
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