AI Article Synopsis
- Fabricating discrete nanostructures with noble metal nanoparticles on substrates is complex but crucial for chip-based plasmonic sensor technology.
- Researchers developed core-satellite nanostructures using gold nanoparticles on glass, linked by dithiol connectors and treated with vacuum ultraviolet light.
- These nanostructures demonstrate significant changes in plasmon resonance peaks with variations in surrounding refractive index, achieving a sensitivity of about 350 nm RIU(-1), making them highly effective for optical sensing applications.
Article Abstract
Fabrication of discrete nanostructures consisting of noble metal nanoparticles immobilized on substrates is challenging because of structural complexity but important for chip-based plasmonic sensor technology. Here we report optical sensing capabilities of core-satellite nanostructures made of gold nanoparticles immobilized on glass substrate, which were fabricated by combining stepwise interconnection of gold nanoparticles through dithiol linkers and surface treatment using vacuum ultraviolet light. The nanostructures exhibit large changes in coupled plasmon resonance peak upon surrounding refractive index, with sensitibity of ca. 350 nm RIU(-1), thus providing highly sensitive optical sensors for determining the surrounding refractive index and detecting organic vapors.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acsami.6b06313 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!