Abstract
In this paper, the absolute quantum yield of Rhodamine B (RhB) doped Polymethyl methacrylate (PMMA) has been characterized. The measurement results and analysis are shown. The used polymeric host (polymethyl methacrylate) assures good transparency and strong intensity of fluorescence spectra of RhB. The samples have been fabricated by radical polymerization process. The quantum yield for the different concentrations Rhodamine B concentration in the range 500-750nm have been calculated. The relationship between absolute quantum yield and concentration of the dye has been also analyzed. The maximum of quantum yield 94.49% was obtained for PMMA doped with RhB 5.39×10-6 mol. The good optical properties and high quantum yield allow numerous applications of used doped host in optoelectronics applications.
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