Q. Shao, Fei Hu, A. Ruotolo
Apr 1, 2016
Citations
0
Influential Citations
4
Citations
Journal
Optical Materials Express
Abstract
Band engineering of transparent semiconductors, such as TiO2, SnO2, has recently been attempted to become black colour in order to increase photocatalytic efficiency in the visible and near infrared ranges. Here, we investigated a previously-neglected property in black oxides by using the example of iron doped indium tin oxide nanoparticles: the photo-thermal effect in the visible and near-infrared ranges. We found a significant enhancement of the photo-thermal generation in the near-infrared biological window that is due to photon absorption, with no significant contribution from surface plasmon resonance. This allows independent magnetic functionalization of the particles by iron doping. These particles may be used for in-vivo cancer treatment where heat is photo-termally generated, while keeping the magnetism as a mean for remote manipulation through permanent magnets.