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Plasmonic molecules via glass annealing in hydrogen
Alexey Redkov1, Semen Chervinskii2, Alexander Baklanov3
1Institute of Physics, Nanotechnology and Telecommunications, St. Petersburg State Polytechnic University, 29 Polytechnicheskaya, St. Petersburg 195251, Russia ; Department of Physics and Technology of Nanostructures, St. Petersburg Academic University, 8/3 Khlopina, St. Petersburg 194021, Russia.
Self-assembled metal nanoislands were grown on silver ion-exchanged glass. Thermal processing and silver out-diffusion enabled the formation of plasmonic nanoisland groups, with kinetics and size distribution modeled.
Area of Science:
- Materials Science
- Surface Science
- Nanotechnology
Background:
- Silver ion-exchanged glasses serve as a substrate for metal nanoisland formation.
- Self-assembly is a key process in nanomaterial fabrication.
- Plasmonic properties of metal nanoislands are of significant interest.
Purpose of the Study:
- To investigate the growth of self-assembled metal nanoislands on silver ion-exchanged glass.
- To explore the use of thermal processing and silver out-diffusion for nanoisland formation.
- To model the kinetics and size distribution of nanoisland growth.
Main Methods:
- Thermal processing of silver ion-exchanged glass in hydrogen.
- Out-diffusion of neutral silver from the glass surface.
- Thermal poling with a structured electrode.
- Modeling of nanoisland formation kinetics and size distribution.
Main Results:
- Formation of separated groups of metal nanoislands presenting plasmonic molecules.
- Successful combination of thermal poling and silver out-diffusion for controlled nanoisland assembly.
- Development of models for nanoisland formation kinetics and temporal evolution of size distribution on poled and unpoled glass.
Conclusions:
- The study demonstrates a simple method for forming plasmonic metal nanoislands on glass.
- The developed method allows for the creation of structured nanoisland arrays.
- Modeling provides insights into the growth mechanisms and size control of these nanoislands.
