Title of article
Study the spectroscopic characteristics of Rhodamine B Dye in Ethanol and Methanol mixture and Calculation the Quantum Efficiency
Author/Authors
Ali, Rafed A. Al-Mustansiriyah University - College of Science - Department of Physics, Iraq , Abdul-Munem, Oday Mazin Al-Mustansiriyah University - Department of Physics, Iraq , Abd, Ahmed Naji Al-Mustansiriyah University - College of Science - Department of Physics, Iraq
From page
352
To page
358
Abstract
The effect of ethanol and methanol solvent, and their mixture has been studied on the absorption and fluorescence spectra of laser dye Rhodamine B at concentration of (10-4) Molar at room temperature. The molar absorption coefficient has been determined for mixture which was (3.223) at wave number (18181.8 cm-1), Also the Quantum Efficiency of the two solvents (ethanol and methanol) and their mixture have been calculated ,which was for mixture spectrum (38.94%) and it was larger comparing with other and solvents. The characteristics of spectrum has been determined by calculating (Δλ) of absorption spectrum for the solvents and its mixture at maximum wave number ( ) cm-1 depending on solvent polarity and the transitions between molecular energy levels in each solvent of Rhodamine B dye
Keywords
Rhodamine B , Quantum Efficiency , laser dye , ethanol and methanol
Journal title
Baghdad Science Journal
Journal title
Baghdad Science Journal
Record number
2690008
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