Aluminum Film-Over-Nanosphere Substrates for Deep-UV Surface-Enhanced Resonance Raman Spectroscopy

Bhavya Sharma, M. Fernanda Cardinal, Michael B. Ross, Alyssa B. Zrimsek, Sergei V. Bykov, David Punihaole, Sanford A. Asher, George C Schatz, Richard P. Van Duyne

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We report here the first fabrication of aluminum film-over nanosphere (AlFON) substrates for UV surface-enhanced resonance Raman scattering (UVSERRS) at the deepest UV wavelength used to date (δex = 229 nm). We characterize the AlFONs fabricated with two different support microsphere sizes using localized surface plasmon resonance spectroscopy, electron microscopy, SERRS of adenine, tris(bipyridine)ruthenium(II), and trans-1,2-bis(4-pyridyl)-ethylene, SERS of 6-mercapto-1-hexanol (as a nonresonant molecule), and dielectric function analysis. We find that AlFONs fabricated with the 210 nm microspheres generate an enhancement factor of approximately 104-5, which combined with resonance enhancement of the adsorbates provides enhancement factors greater than 106. These experimental results are supported by theoretical analysis of the dielectric function. Hence our results demonstrate the advantages of using AlFON substrates for deep UVSERRS enhancement and contribute to broadening the SERS application range with tunable and affordable substrates.

Original languageEnglish
Pages (from-to)7968-7973
Number of pages6
JournalNano Letters
Volume16
Issue number12
DOIs
Publication statusPublished - Dec 14 2016

Fingerprint

Nanospheres
Aluminum
Raman spectroscopy
aluminum
Microspheres
Raman scattering
augmentation
resonance scattering
Substrates
Ruthenium
Surface plasmon resonance
Adenine
Adsorbates
Raman spectra
Electron microscopy
adenines
Ethylene
surface plasmon resonance
Spectroscopy
ruthenium

Keywords

  • aluminum plasmonics
  • film-overnanosphere substrates
  • surface-enhanced Raman spectroscopy (SERS)
  • UV resonance Raman spectroscopy (UVRRS)

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Sharma, B., Cardinal, M. F., Ross, M. B., Zrimsek, A. B., Bykov, S. V., Punihaole, D., ... Van Duyne, R. P. (2016). Aluminum Film-Over-Nanosphere Substrates for Deep-UV Surface-Enhanced Resonance Raman Spectroscopy. Nano Letters, 16(12), 7968-7973. https://doi.org/10.1021/acs.nanolett.6b04296

Aluminum Film-Over-Nanosphere Substrates for Deep-UV Surface-Enhanced Resonance Raman Spectroscopy. / Sharma, Bhavya; Cardinal, M. Fernanda; Ross, Michael B.; Zrimsek, Alyssa B.; Bykov, Sergei V.; Punihaole, David; Asher, Sanford A.; Schatz, George C; Van Duyne, Richard P.

In: Nano Letters, Vol. 16, No. 12, 14.12.2016, p. 7968-7973.

Research output: Contribution to journalArticle

Sharma, B, Cardinal, MF, Ross, MB, Zrimsek, AB, Bykov, SV, Punihaole, D, Asher, SA, Schatz, GC & Van Duyne, RP 2016, 'Aluminum Film-Over-Nanosphere Substrates for Deep-UV Surface-Enhanced Resonance Raman Spectroscopy', Nano Letters, vol. 16, no. 12, pp. 7968-7973. https://doi.org/10.1021/acs.nanolett.6b04296
Sharma B, Cardinal MF, Ross MB, Zrimsek AB, Bykov SV, Punihaole D et al. Aluminum Film-Over-Nanosphere Substrates for Deep-UV Surface-Enhanced Resonance Raman Spectroscopy. Nano Letters. 2016 Dec 14;16(12):7968-7973. https://doi.org/10.1021/acs.nanolett.6b04296
Sharma, Bhavya ; Cardinal, M. Fernanda ; Ross, Michael B. ; Zrimsek, Alyssa B. ; Bykov, Sergei V. ; Punihaole, David ; Asher, Sanford A. ; Schatz, George C ; Van Duyne, Richard P. / Aluminum Film-Over-Nanosphere Substrates for Deep-UV Surface-Enhanced Resonance Raman Spectroscopy. In: Nano Letters. 2016 ; Vol. 16, No. 12. pp. 7968-7973.
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