Photophysical Parameters of Functional Transparent Polymethyl-Methacrylate/Double-Walled Carbon Nanotubes Nanocomposite Sheet Under UV-Irradiation |
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| Authors: | Zein K Heiba Mohamed Bakr Mohamed N G Imam |
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| Affiliation: | 1.Faculty of Science,Taif University,Taif,Kingdom of Saudi Arabia;2.Physics Department,Taibah University,Medina,Kingdom of Saudi Arabia;3.Physics Department, Faculty of Science,Ain Shams University,Cairo,Egypt;4.Experimental Physics Department, Nuclear Research Center,Atomic Energy Authority,Cairo,Egypt |
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| Abstract: | Polymethyl-methacrylate (PMMA)/double-walled carbon nanotubes DWCNTs was prepared by using casting technique and studying with different spectroscopic techniques. UV/Vis spectral analysis shows that, the transmittance reaches to 92 % for blank PMMA and decreases to 87 % for PMMA doped with 0.01 DWCNTs composite. The calculated refractive index and absorption coefficient increase, while the estimated values of Urbach energy decreased after embedding CNT into PMMA matrix. The optical band gap values were observed to vary slightly with doping amount. Photoluminescence (PL) spectra show that there is no shift in the emission peak position upon doping with CNTs, but PL intensity is enhanced. |
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