A study on optical limiting properties of Eosin-Y and Eriochrome Black-T dye-doped poly (vinyl alcohol) composite film |
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| Authors: | K M Manikandan A Yelilarasi P Senthamaraikannan S S Saravanakumar Anish Khan Abdullah M Asiri |
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| Institution: | 1. Department of Physics, Kamaraj College of Engineering and Technology, Madurai, Tamil Nadu, India;2. Department of Mechanical Engineering, Kamaraj College of Engineering and Technology, Madurai, Tamil Nadu, India;3. Chemistry Department, King Abdulaziz University, Jeddah, Saudi Arabia;4. Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, Saudi Arabia |
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| Abstract: | A poly (vinyl alcohol) PVA/Eriochrome Black-T (EBT) dye, and PVA/Eosin-Y (EY) dye composite film was prepared using a solution casting process. The dye-doped composite polymer films were characterized by UV–vis spectroscopy. An optical band gap (Eg) of pure PVA reduced from 4.22?eV to 2.80?eV for PVA/EBT film and 2.14?eV for PVA/EY film respectively. This result indicates the occurrence of inter-molecular hydrogen bonding between the –OH functional group in PVA chains and sulfonate (EBT) and carboxyl group (EY) in dye molecules, respectively. Moreover, the experimental result of PVA/EBT and PVA/EY composite film showed the excellent properties of a large scale cut-off filter in the ultraviolet and visible range region. |
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| Keywords: | Poly (vinyl alcohol) Eriochrome Black T dye Eosin Y dye optical properties |
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