Global Journal of Pure and Applied Chemistry Research (GJPACR)

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Optical Properties of Composite Resol Novolac Resin (Rnr) Doped With Rhodamine 6g


Optical characteristics of Resol Novolac Resin (RNR) films doped with different ratios of Rhodamine 6G (0.01,0.03, 0.05, 0.05, 0.07, 0.1)% wt. were studied. The composite films prepared using casting technique, the optical absorption spectra of these films in the wavelength range from 200-800 nm. The result showed that the optical absorption is due to direct allowed transitions for pure RNR and different doping ratios, while the Energy gap Eg of the composite films decreases with increasing doping ratios. The absorption coefficient (a), real and imaginary parts (ɛri), and optical conductivity (σopt) were found to be increased with increasing the doping ratios.                                                                                                                    

Keywords: Optical Properties, Resol Novolac Resin, Rhodamine 6G, doping effect

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