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Photocatalysis Effect-Based Optical Information Recording on the Titanium Dioxide Nanoparticles and Luminescent Dye-Doped Polymer Nanocomposite

Gia Petriashvili1, Andro Chanishvili1, Ketevan Chubinidze1, Tamara Tatrishvili2,3, Elene Kalandia1, Tamar Makharadze1,2, Nana Imnaishvili1, Shio Makatsaria1, Ana Petriashvili1, Ina Burjanadze1
Affiliation: 
1 Vladimir Chavchanidze Institute of Cybernetics of the Georgian Technical University, 5 Z. Andjzaparidze St., Tbilisi 0186, Georgia 2 Ivane Javakhishvili’ Tbilisi State University, Department of Macromolecular Chemistry, 1 I. Chavchavadze Ave., Tbilisi 0179, Georgia 3 Institute of Macromolecular Chemistry and Polymeric Materials, Ivane Javakhishvili Tbilisi State University, 2 University St., Tbilisi 0186, Georgia g.petriashvili@yahoo.co.uk
DOI: 
https://doi.org/10.23939/chcht19.03.549
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Abstract: 
Titanium dioxide is the most widely used semiconductor substance as a photocatalytic material in self-cleaning surfaces, air and water purification systems, sterilization, hydrogen evolution, and photoelectrochemical conversion. In this work, we propose a photocatalysis effect-based optical information recording on the titanium dioxide nanoparticles and luminescent dye-doped polymer nanocomposite for the first time. The optical information was recorded as holographic gratings. Holographic and non-holographic methods were employed to record optical information on a polymer nanocomposite. A green laser beam and a halogen-tungsten lamp with a band-pass filter were used for this purpose. As a result, the high-density optical information was obtained, with an optical density of 500 mm⁻¹. The data recorded on the polymer nanocomposite is stable and durable.
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