Abstract
We compare the room temperature surface-enhanced resonance Raman scattering (SERRS) spectra of three molecules (riboflavin, 1-nitropyrene, and rhodamine 6G) adsorbed on rough silver films with SERRS spectra of the same samples submerged in liquid nitrogen. We find that the spectra obtained in the liquid nitrogen environment exhibit substantially higher signal-to-noise ratios, which we attribute to an increase in the SERRS electromagnetic enhancement factor in the liquid nitrogen environment arising from the dielectric properties of liquid nitrogen.
| Original language | English |
|---|---|
| Pages (from-to) | 167-173 |
| Number of pages | 7 |
| Journal | Chemical Physics Letters |
| Volume | 339 |
| Issue number | 3-4 |
| DOIs | |
| State | Published - May 11 2001 |
| Externally published | Yes |
Funding
R.J.H thanks Profs. C.S. Feigerle and J.F.C. Turner for several helpful conversations. This work was supported in part by the Division of Chemical Sciences, Office of Basic Energy Science, US Department of Energy, under grant DE-FG02-96ER14609 to the University of Tennessee. M.J.S. and J.N. also acknowledge support from the Research Experiences for Undergraduates program of the National Science Foundation under grant CHE-9732363. We thank S. Fox and J. Pittman for their assistance with these experiments.
| Funders | Funder number |
|---|---|
| Division of Chemical Sciences | |
| Office of Basic Energy Science | |
| US Department of Energy | DE-FG02-96ER14609 |
| National Science Foundation | CHE-9732363 |
| University of Tennessee |