Comment on ”Scanning-probe Raman spectroscopy with single molecule sensitivity”
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چکیده
We reinterpret the scanning-probe Raman spectra shown in the above paper [C.C. Neacsu et al., Phys. Rev. B 73, 193406 (2006)] and compare it to a variety of single-molecule surface-enhanced Raman (SER) studies. The observed blinking behaviour and spectral features must be attributed to carbon contaminations rather than to Malachite Green (MG) single molecules, because, under the given experimental conditions, the extremely high field enhancement of 5 x 10 will inevitably lead to a quick (photo)decomposition of the adsorbate.
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تاریخ انتشار 2006