Abstract
The detection of probe molecules at ultralow concentrations, even at the
single-molecule level, can be addressed with the breakthrough concept of
plasmonic hot-spot engineering. In view of that, the fabrication of nanostructures
endowed with sub-10 nm gaps and extremely large near-field enhancement
has gained increasing attention, becoming a key-condition for improved
sensitivity. The present work demonstrates a new perspective in ultrasensitive
detection by engineering every individual plasmonic nanostructure with a
giant electric field confinement and superior hot-spot densities, thus eliminating
the need for extremely narrow interparticle separations.
single-molecule level, can be addressed with the breakthrough concept of
plasmonic hot-spot engineering. In view of that, the fabrication of nanostructures
endowed with sub-10 nm gaps and extremely large near-field enhancement
has gained increasing attention, becoming a key-condition for improved
sensitivity. The present work demonstrates a new perspective in ultrasensitive
detection by engineering every individual plasmonic nanostructure with a
giant electric field confinement and superior hot-spot densities, thus eliminating
the need for extremely narrow interparticle separations.
| Original language | English |
|---|---|
| Article number | 1600836 |
| Journal | Advanced Optical Materials |
| Volume | 5 |
| Issue number | 4 |
| Number of pages | 7 |
| ISSN | 2195-1071 |
| DOIs | |
| Publication status | Published - 2017 |