INFLUENCE OF ELECTRIC FIELDS ON FLUORESCENCE QUENCHING OF CHLOROPHYLL a IN NEMATIC LIQUID CRYSTAL MATRIX |
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| Authors: | Danuta,Fr° Ckowiak ,Danuta,Bauman Izabela,Betkowska |
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| Affiliation: | Institute of Physics, PoznañTechnical University, Poznari, Poland |
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| Abstract: | Abstract— An electric field enhances the yield of fluorescence of chlorophyll in a liquid crystal solvent. The presented data suggest that the electric field effect is caused by the decrease in the efficiency of fluorescence quenching by ions. Quenching of each polarized component of fluorescence of chlorophyll molecules oriented by the liquid crystal matrix is different. The relative increase in fluorescence yield due to the applied electric field is stronger for a fluorescence component polarized parallel to the direction of liquid crystal orientation than for the perpendicular component. |
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