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Published on: August 20, 2018
Surface plasmon resonance-mediated colloid gold monolayer junctions.
1Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel. yongdong.jin@weizmann.ac.il
Journal of the American Chemical Society
|August 25, 2005
Summary
Researchers created surface plasmon resonance (SPR)-mediated gold nanoparticle junctions. Illumination enhanced junction current, demonstrating a new pathway for nanoelectronic devices utilizing surface plasmons (SPs).
Area of Science:
- Nanotechnology
- Materials Science
- Condensed Matter Physics
Background:
- Localized field amplification from surface plasmons (SPs) in metal nanoparticles offers potential for novel nanoelectronic devices.
- Current-carrying nanoelectronic devices based on metal nanoparticles are an area of active research.
Purpose of the Study:
- To develop a simple method for preparing surface plasmon resonance (SPR)-mediated colloid gold (Au) monolayer junctions.
- To investigate the electrical properties of these junctions under illumination.
Main Methods:
- Fabrication of Au monolayer junctions using wet chemistry.
- Deposition of a soft top electrode.
- Measurement of junction current under optical illumination near nanoparticle plasmon resonance wavelengths.
Main Results:
- Successfully prepared SPR-mediated colloid Au monolayer junctions.
- Observed an SPR-enhanced junction current upon illumination.
- This enhanced current was superimposed on the baseline tunneling current.
Conclusions:
- The study demonstrates a viable method for creating SPR-mediated nanoelectronic junctions.
- Optical control of current in nanoelectronic devices via surface plasmons is achievable.
- This work opens avenues for new applications in plasmonic nanoelectronics.
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