| 초록 |
The resonant interaction of electromagnetic radiation and metal nanostructures forms the collective oscillation of electrons, which is confined at the surface of nanostructure. This is called the localized surface plasmon resonance (LSPR). The LSPRs produced by metal nanoparticles have been shown to cleave bonds in molecules. This talk accounts for advances in visible-light-driven LSPR excitation of gold nanoparticles for the formation of energy-rich chemical bonds. The free energy of light is harvested in the form of energetic charge carriers. They participate in thermodynamically uphill redox reactions, resulting in the renewable photosynthesis of hydrogen and hydrocarbons via multielectron, multiproton transformations. In these processes, the chemical potential of LSPR excitations is promoted by tuning nanostructure, attributes of incident light, and reaction medium. The nature of plasmonic excitations is described along with a combined theoretical and experimental model. |
