NIR Electrochromism of Plasmonic Au Nanoporous Structures Based on Surface Oxidation and Reduction Reactions

Key Points

• This research aims to explore how surface oxidation and reduction reactions affect the LSPR properties of gold nanoporous structures.
• Fabrication of Au nanoporous structures with varying pore sizes.
• Induction of surface oxidation and reduction reactions.
• Measurement of LSPR properties in the NIR region.
• Reversible control of LSPR properties observed.
• Different pore sizes significantly affected electrochromic behavior.
• NIR response suggests potential applications in optical technologies.