Title :
Dendritic Gold Substrates for Surface-Enhanced Raman Spectroscopy
Author :
Watling, Kym M. ; Hope, Gregory A.
Author_Institution :
Sch. of Sci., Griffith Univ., Nathan, Qld.
Abstract :
Gold surface-enhanced Raman scattering (SERS) substrates were prepared by oxidation/reduction cycling in acidified 1.0 mol dm-3 KCl solution. SEM investigation of the SERS-activated gold surface revealed the formation of clusters of nanoscale dendrites. The SERS activity generated by the treatment enabled the detection of the vibrational modes of adsorbates present at sub-monolayer coverages and the observation of surface species present during active leaching in cyanide and thiosulfate solutions.
Keywords :
dendrites; gold; oxidation; potassium compounds; reduction (chemical); surface enhanced Raman scattering; KCl; KCl solution; SEM; SERS; cyanide solutions; dendritic gold substrates; gold surface; nanoscale dendrites; oxidation/reduction cycling; surface-enhanced Raman scattering substrates; surface-enhanced Raman spectroscopy; thiosulfate solutions; Gold; Plasmons; Raman scattering; Resonance; Rough surfaces; Spectroscopy; Substrates; Surface morphology; Surface roughness; Surface treatment;
Conference_Titel :
Nanoscience and Nanotechnology, 2006. ICONN '06. International Conference on
Conference_Location :
Brisbane, Qld.
Print_ISBN :
1-4244-0452-5
Electronic_ISBN :
1-4244-0452-5
DOI :
10.1109/ICONN.2006.340585
