Abstract
We demonstrate a convenient nanotechnique to modulate Si-Ag "wire-cap" nanostructures for metal-enhanced fluorescence by self-selective electroless plating on Si. Optimized coupling between Ag caps and organic emitter can be achieved by altering the bending degree of the Si nanowires resulting in significantly enhanced local electric field intensity. The enhanced photoluminescence from the organic emitter coupled Si-Ag "wire-cap" nanostructures derives from the excitation of localized surface plasmons between the Ag nanocaps and also the energy transfer effect in the surface plasmon resonant coupling between the organic emitter and Ag caps. Our technique has potential applications in biochemical sensors and light emitters. © 2012 Elsevier B.V. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 2586-2589 |
| Journal | Journal of Luminescence |
| Volume | 132 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - Oct 2012 |
Research Keywords
- Localized surface plasmons
- Metal-enhanced fluorescence
- Self-selective electroless plating
- Si nanowires
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