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Raman Fingerprints of Atomically Precise Graphene Nanoribbons.

ABSTRACT: Bottom-up approaches allow the production of ultranarrow 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 sp(2) carbon nanostructures.

SUBMITTER: Verzhbitskiy IA

PROVIDER: S-EPMC4901367 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature

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Raman Fingerprints of Atomically Precise Graphene Nanoribbons.

Verzhbitskiy Ivan A IA Corato Marzio De MD Ruini Alice A Molinari Elisa E Narita Akimitsu A Hu Yunbin Y Schwab Matthias G MG Bruna Matteo M Yoon Duhee D Milana Silvia S Feng Xinliang X Müllen Klaus K Ferrari Andrea C AC Casiraghi Cinzia C Prezzi Deborah D

Nano letters 20160509 6

Bottom-up approaches allow the production of ultranarrow 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 ...[more]

PMID: 26907096

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