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Raman fingerprints of atomically precise graphene nanoribbons

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arxiv 1605.04105 v1 pith:TL6JYHIU submitted 2016-05-13 cond-mat.mes-hall

Ivan A. Verzhbitskiy , Marzio De Corato , Alice Ruini , Elisa Molinari , Akimitsu Narita , Yunbin Hu , Matthias Georg Schwab , M. Bruna
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D. Yoon S. Milana Xinliang Feng Klaus Müllen Andrea C. Ferrari Cinzia Casiraghi Deborah Prezzi
This is my paper
classification cond-mat.mes-hall
keywords ramanatomicallyedgegnrsgraphenenanoribbonspreciseab-initio
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Bottom-up approaches allow the production of ultra-narrow and atomically precise graphene nanoribbons (GNRs), with electronic and optical properties controlled by the specific atomic structure. Combining Raman spectroscopy and ab-initio simulations, we show that GNR width, edge geometry and functional groups all influence their Raman spectra. The low-energy spectral region below 1000 cm-1 is particularly sensitive to edge morphology and functionalization, while the D peak dispersion can be used to uniquely fingerprint the presence of GNRs, and differentiates them from other sp2 carbon nanostructures.

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