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Effect of Some Solvents on Spectroscopic Properties of Rhodamine 3GO Dye. | ||
| Albahir journal | ||
| Article 1, Volume 4, Issue 7, 2016, Pages 93-101 | ||
| Authors | ||
| Raja Abdul- Ameer Madlool and; Slafa Ibrahim; Hussein A. Al-Hamdani; Ali H. Al-Hamdani | ||
| Abstract | ||
| In this paper the effects of some solvent (Ethanol, Methanol, 2-Propanol, Acetone, and Ethyl acetate) on the spectrum of absorption and fluorescence of Rhodamine 3GO dye with constant concentration (3*10-5 Mol/l ) at room temperature were studied. The results have shown that there is increasing in quantum efficiency with increasing of relative polarity of the solvent and decreasing with increasing in viscosity of the solvent. Fluorescence spectrum is shifted toward the long wavelength (red shift). It is found that the peak value of absorption wavelength for Rhodamine 3GO in these solvent ranging between (525nm-530nm) ,while there is a slightly changing between (551.5nm-558.5 nm) in the peak of fluorescence wavelength. Also non-radiative life time and fluorescent life time increases with the increasing the quantum efficiency. | ||
| Keywords | ||
| Rhodamine; quantum efficiency | ||
|
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