Electromigrated nanoscale gaps for surface-enhanced Raman spectroscopy

Details Electromigrated nanoscale gaps for surface-enhanced Raman spectroscopy Electromigrated nanoscale gaps for surface-enhanced Raman spectroscopy

2007-04-03

arxiv.org/abs/0704.0451v1

Nano Lett. 7, 1396-1400 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

29 pages, 11 figures (includes supp. material)

Scientific paper

10.1021/nl070625w

Single-molecule detection with chemical specificity is a powerful and much desired tool for biology, chemistry, physics, and sensing technologies. Surface-enhanced spectroscopies enable single molecule studies, yet reliable substrates of adequate sensitivity are in short supply. We present a simple, scaleable substrate for surface-enhanced Raman spectroscopy (SERS) incorporating nanometer-scale electromigrated gaps between extended electrodes. Molecules in the nanogap active regions exhibit hallmarks of very high Raman sensitivity, including blinking and spectral diffusion. Electrodynamic simulations show plasmonic focusing, giving electromagnetic enhancements approaching those needed for single-molecule SERS.

Affiliated with

Also associated with

No associations

Rating

Electromigrated nanoscale gaps for surface-enhanced Raman spectroscopy does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Electromigrated nanoscale gaps for surface-enhanced Raman spectroscopy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromigrated nanoscale gaps for surface-enhanced Raman spectroscopy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-212967