Fabrication of Au nanoparticle composite TiO2 shell arrays by controlled decomposition of polymer particles.

In the paper, the novel TiO 2 nanoshell arrays coated with Au nanoparticles (NPs) were prepared by a simple and effective fabrication method with thermal decomposing polymer particles. Surface structure and composition of these arrays were evaluated by Scanning Electron Microscope (SEM), Energy Dispersive Spectrometer (EDS), and X-ray photoelectron spectroscopy (XPS). The results indicated that TiO 2 nanoshell coated with Au NPs was changed into Au@TiO 2 composite NPs with the rise of annealing temperature. These novel nanostructures have the potential applications in some research fields, such as photocatalysis, single molecule detection, and novel optoelectronic devices. [ABSTRACT FROM AUTHOR]