Spectral‐Luminescent Properties of Deposited Rhodamine 6G Films

Bryukhanov, V. V.; Elistratova, S. A.; Laurinas, V. C.
May 2003
Journal of Applied Spectroscopy;May/Jun2003, Vol. 70 Issue 3, p450
Academic Journal
We have investigated the absorption and fluorescence spectra of Rhodamine 6G thin (20–100 nm) films vacuum‐deposited on solid dielectric substrates: quartz and borosilicate glasses and polymer films. By the absorption spectra several molecular absorption centers — monomers, dimers, and complex associates — have been revealed. For the first time luminescence of vacuum‐deposited Rhodamine 6G films has been obtained and investigated. We classified it as fluorescence of plane dimers and dimers of the “house‐of‐cards” type and also as luminescence of complex associates. The dependence of the spectral composition of the films on the excitation wavelength in the 293–353 K temperature range has been studied. It has been proposed that amorphous Rhodamine 6G films obtained by the vacuum deposition method contain crystalline zones and microclusters of adsorbed water molecules.


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