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Plasmon induced polymerization using a TERS approach: a platform for nanostructured 2D/1D material production
Zhenglong Zhang1, Marie Richard-Lacroix, Volker Deckert
1Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany. volker.deckert@leibniz-ipht.de.
Faraday Discussions
|September 16, 2017
Summary
This study demonstrates localized plasmon-catalyzed polymerization using a TERS tip to initiate reactions on self-assembled monolayers. This opens new avenues for controlled polymer production and ultra-thin film fabrication.
Area of Science:
- Surface chemistry
- Nanotechnology
- Polymer science
Background:
- Plasmon-induced chemical reactions offer efficient light-energy conversion.
- Localized polymer production is an underexplored application of plasmon catalysis.
- Self-assembled monolayers (SAMs) provide a platform for controlled surface reactions.
Purpose of the Study:
- To present the first example of localized, directed plasmon-catalyzed polymerization of SAMs.
- To demonstrate nanoscale control over polymerization using plasmonic features.
- To explore the potential for producing ultra-thin polymer films with defined dimensions.
Main Methods:
- Utilized silver and gold surfaces for plasmon-catalyzed reactions.
- Employed surface-enhanced Raman spectroscopy (SERS) and tip-enhanced Raman spectroscopy (TERS) for monitoring.
- Used a bi-functionalized dibenzo(1,2)dithiine-3,8-diamine (D3ATP) molecule as a model system.
Main Results:
- Successfully demonstrated plasmon-induced dimerization of D3ATP via amino group coupling to form an azo group.
- Monitored polymerization initiation through the appearance of new characteristic spectral bands.
- Showcased nanoscale and micron-scale control over the polymerization process using a TERS tip.
Conclusions:
- Plasmonic features, like TERS tips, can effectively induce localized polymerization reactions.
- This work establishes a new platform for controlled synthesis of ultra-thin polymer films.
- Provides a foundation for designing advanced plasmonic catalysis experiments.
