Investigation of sp carbon chain interaction with silver nanoparticles by Surface Enhanced Raman Scattering
Materials Science
2009-09-22 v2
Abstract
Surface Enhanced Raman Spectroscopy (SERS) is exploited here to investigate the interaction of isolated sp carbon chains (polyynes) in a methanol solution with silver nanoparticles. Hydrogen-terminated polyynes show a strong interaction with silver colloids used as the SERS active medium revealing a chemical SERS effect. SERS spectra after mixing polyynes with silver colloids show a noticeable time evolution. Experimental results, supported by density functional theory (DFT) calculations of the Raman modes, allow us to investigate the behavior and stability of polyynes of different lengths and the overall sp conversion towards sp2 phase.
Keywords
Cite
@article{arxiv.0803.4075,
title = {Investigation of sp carbon chain interaction with silver nanoparticles by Surface Enhanced Raman Scattering},
author = {A. Lucotti and C. S. Casari and M. Tommasini and A. Li Bassi and D. Fazzi and V. Russo and M. Del Zoppo and C. Castiglioni and F. Cataldo and C. E. Bottani and G. Zerbi},
journal= {arXiv preprint arXiv:0803.4075},
year = {2009}
}
Comments
19 pages, 7 figures, 1 tables