Related Experiment Video
Updated: Feb 18, 2026

In Situ Synthesis of Gold Nanoparticles without Aggregation in the Interlayer Space of Layered Titanate Transparent Films
Published on: January 17, 2017
Far-ultraviolet spectral changes of titanium dioxide with gold nanoparticles by ultraviolet and visible light
Ichiro Tanabe1, Yuji Kurawaki2
1Graduate School of Engineering Science, Osaka University, Machikaneyama 1-3, Toyonaka, Osaka 5608531, Japan.
Abstract:
Attenuated total reflectance spectra including the far-ultraviolet (FUV, ≤200nm) region of titanium dioxide (TiO2) with and without gold (Au) nanoparticles were measured. A newly developed external light-irradiation system enabled to observe spectral changes of TiO2 with Au nanoparticles upon light irradiations. Absorption in the FUV region decreased and increased by the irradiation with ultraviolet and visible light, respectively. These spectral changes may reflect photo-induced electron transfer from TiO2 to Au nanoparticles under ultraviolet light and from Au nanoparticles to TiO2 under visible light, respectively.

