STUDY EFFECT OF DIFFERENT SOLVENT POLARITY ON THE ABSORPTION AND THE FLUORESCENCE SPECTRUM OF PHENOLPHTHALEIN LASER DYE
Journal Title: Academic Research International - Year 2016, Vol 7, Issue 1
Abstract
In this research study the effect of different polarity solvent strength (Ethanol, DMSO, DMF, CCL4) and different concentrations (1×10-3 ,1×10-4,1×10-5, 1×10-6,1×10-7) Ml to dye phenolphthalein solution to (the absorption and the fluorescence spectrum ,linear optical properties (refraction and absorption coefficients), fluorescence life time and Quantum Yield. Where we noticed the removal of absorption and fluorescence spectrum peak towards shorter wavelengths (blue shift) to increase the strength and polarity of the solvent concentration of the solution. And increase the intensity of absorption spectrum and linear optical properties (absorption coefficients and refraction), an increase of concentration of the solution. The fluorescence spectrum emissivity decreases by increasing the concentration of the solution. The effect of different type and strength of the solvent polarity on the intensity of the absorption spectrum and the fluorescence emissivity effect was irregular.
Authors and Affiliations
Lazem Hassan Aboud
Keywords
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