I have calculated the Stokes shift for pure liquid crystal material and Liquid crystal-nanomaterial composite system and the Stokes shift of pure Liquid crystal is greater than the composite system. It is indicating what?
This could be due to a number of factors. Is the absorption spectrum the same?
It means that the interactions (van der Waals, dipole-dipole etc.) which tend to lower the energy of the fluorescing state are stronger in the liquid crystal than in the nanomaterial composite host. This might not be unreasonable, as the molecular packing in the liquid crystal might favor stronger intermolecular interactions.
The absorbance of Pure liquid crystal is higher than the Liquid crystal-nanomaterial composite system.
Is it shifted in wavelength? If the Stokes shift has changed, either the absorption, emission, or both have changed in energy. It is important to understand which.
No, there is not any shift in the absorbance wavelength but there is shift in emission wavelength i.e. PL emission of Liquid crystal- nanomaterial composite has been blue shifted.
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