Mogensen, Klaus Bo1; Gühlke, Marina6; Kneipp, Janina6; Kadkhodazadeh, Shima3; Wagner, Jakob Birkedal3; Espina Palanco, Marta5; Kneipp, Harald5; Kneipp, Katrin5
1 Department of Micro- and Nanotechnology, Technical University of Denmark2 Fluidic Array Systems and Technology, Department of Micro- and Nanotechnology, Technical University of Denmark3 Center for Electron Nanoscopy, Technical University of Denmark4 Biophysics and Fluids, Department of Physics, Technical University of Denmark5 Department of Physics, Technical University of Denmark6 Humboldt-Universität zu Berlin
We observed strong surface-enhanced Raman scattering on discontinuous nanostructured aluminum films using 785 nm excitation even though dielectric constants of this metal suggest plasmon supported spectroscopy in the ultraviolet range. The excitation of SERS correlates with plasmon resonances in the 1.3–2.5 eV range identified in electron energy loss spectra.
Chemical Communications, 2014, Vol 50, Issue 28, p. 3744-3746