Yu, L.
, Zangmeister, C.
and Kushmerick, J.
(2008),
Origin of Discrepancies in Inelastic Electron Tunneling Spectra ofMolecular Junctions, Physical Review Letters
(Accessed December 13, 2024)
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Origin of Discrepancies in Inelastic Electron Tunneling Spectra ofMolecular Junctions
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Abstract
We report inelastic electron tunneling spectroscopy (IETS) of multilayer molecular junctions with and without incorporated metal nano-particles. The incorporation of metal nanoparticles into our devices leads to enhanced IET intensity and a modified line-shape for some vibrational modes. The enhancement and line-shape modification are both the result of a low lying hybrid metal nanoparticle-molecule electronic level. These observations explain the apparent discrepancy between earlier IETS measurements of alkane thiolate junctions by Kushmerick et al. [Nano Lett. 4, 639 (2004)] and Wang et al. [Nano Lett. 4, 643 (2004)].Citation
Physical Review Letters
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Created October 16, 2008