Cover Feature: Steady‐State and Time‐Resolved Optical Properties of Multilayer Film of Titanium Dioxide Sandwiched by Gold Nanoparticles and Gold Thin Film (ChemNanoMat 8/2019)

Metal-insulator-metal (MIM) structures of titanium dioxide (TiO2) sandwiched by gold nanoparticles (AuNPs) and gold sputtered thin film were fabricated to couple localized plasmon mode of AuNP with multi-reflection mode and/or cavity resonator mode of Au-film and/or TiO2. The thickness of TiO2, which heterogeneously grew from AuNP, affected the optical extinction and the transient absorption spectra (TAS). The long-lived electron (∼1 ns) was observed in thick (800 nm) MIM film under the condition of 800 nm for excitation laser and 950 nm for probe laser. This indicates that the hot electron transferred from the gold nanostructure in the film. More information can be found in the Full Paper by Shin-ichiro Yanagiya et al. on page 1015 in Issue 8, 2019 (DOI: 10.1002/cnma.201900042).