A Study on Luminescence Enhancement in Ion Irradiated TiO₂/Poly(methyl methacrylate) Nanocomposites

Abstract:

Swift heavy ion induced modification in the optical properties of TiO2/Poly (Methyl methacrylate) nanocomposites is reported in this paper. The as prepared anatase TiO2 nanoparticles were uniformly dispersed in PMMA matrix using solution casting method. These nanocomposites were then irradiated with Ag+12 (120 MeV) ion beam and characterized by X-ray diffraction, scanning electron microscopy, UV-Vis spectroscopy, PL and Raman spectroscopy. The PL spectra exhibited an enhanced broad emission peak in visible region (400 nm - 750 nm) while UV-Vis spectroscopy revealed an increased absorption in visible region in irradiated specimen in comparison to unirradiated sample.

• Periodical: Advanced Materials Research (Volume 585)
• Pages: 139-143
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.585.139
• Online since: November 2012
• Authors: Sarla Sharma, Rishi Vyas, Vijay Y K
• Keywords: Photoluminescence (PL), Poly(methyl methacrylate) (PMMA), SHI Irradiation, TiO₂ Nanoparticle

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