Studying the spectral properties of thin films of rhodamine (6G) dyes doped polymer (PMMA) dissolved in chloroform | ||
| Iraqi Journal of Physics | ||
| Article 1, Volume 12, Issue 23, April 2014, Pages 59-64 | ||
| Authors | ||
| Rajaa Nader; Rafah Abdul Hadi; Ali H. Al-Hamdani | ||
| Abstract | ||
| In the present work, poly methyl methacrylate (PMMA) doped with Rhodamine 6G was prepared. The spectral properties (absorption and fluorescence) of the films were studied at different concentrations (1x10-5, 2x10-5, 5x10-5, 7x10-5, and 1x10-4mol/l). The investigated samples were made in the form of thin films. This was achieved by dissolving a certain weight of PMMA in a fixed volume of chloroform, composite films was with thickness (25.8μm) at room temperature. The achieved results were pointed out that absorption and fluorescence spectra have taken a wide spectral rang so when increased the concentration each peak shift toward along wavelength. The quantum efficiency of the films were calculated as follows (98%,89%,84%,83% and 76%) for the above concentrations respectively. It has been noticed that the quantum efficiency decreases as the concentrations increases. | ||
| Keywords | ||
| Rhodamind; Absorpence; Fluorescence | ||
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