Speaker
Description
TiO2 nanoparticles present several advantages for applications compared to their bulk counterparts. Their high‐surface‐to‐volume ratio, improved charge transport and lifetime, afforded by their dimensional anisotropy, allows efficient contribution to the separation of photo‐generated holes and electrons [1]. Titanium dioxide (TiO2) exhibits tremendous properties such as higher chemical stability, lower toxicity, better chemical resistance, and so on and follows cost-effective preparation strategies for mass productions [2]. Modification with rare-earth (RE) metals has emerged as an important approach for enhancing the properties of titanium dioxide [3]. Er3+ doped TiO2 was successfully synthesized by sol-gel method. The powder was doped with different concentrations of 5 mol % Er3+, 8 mol % Er3+ and 10 mol % Er3+. The structural, optical Images and Up-conversion luminescence studies were characterized by XRD, SEM, Raman spectroscopy, Cytoviva and PL. The optimal up-conversion luminescence intensity excite by 980 nm laser was observed from 8 mol% doping of Er3+ ions. This Er3+doped TiO2 nanoparticles have potential applications in bio-imaging.
References
[1] Ðorđević V, Milićević B and Dramićanin MD (2017), ‘Rare Earth‐Doped Anatase TiO2 Nanoparticles. Titanium Dioxide’. InTech. Available at: http://dx.doi.org/10.5772/intechopen.68882.
[2]Jai Prakash, Samriti et.al, Materials Today Sustainability’, Volume 13, September 2021, 100066. https://doi.org/10.1016/j.mtsust.2021.100066
[3]Alicja Mikolajczyk et.al, ‘Visible-light photocatalytic activity of rare-earth-metal-doped TiO2: Experimental analysis and machine learning for virtual design’, Applied Catalysis B: Environment and Energy, Volume 346, 5 June 2024, 123744. https://doi.org/10.1016/j.apcatb.2024.123744