Raman spectroscopy of holey nanographene C216

Maghsoumi, Ali; Beser, Uliana; Feng, Xinliang; Narita, Akimitsu; Muellen, Klaus; Castiglioni, Chiara; Tommasini, Matteo

doi:10.1002/jrs.6189

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Journal Article

Raman spectroscopy of holey nanographene C216

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Feng, Xinliang
Department of Synthetic Materials and Functional Devices (SMFD), Max Planck Institute of Microstructure Physics, Max Planck Society;

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https://doi.org/10.1002/jrs.6189
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Citation

Maghsoumi, A., Beser, U., Feng, X., Narita, A., Muellen, K., Castiglioni, C., et al. (2021). Raman spectroscopy of holey nanographene C216. Journal of Raman Spectroscopy. doi:10.1002/jrs.6189.

Cite as: https://hdl.handle.net/21.11116/0000-0008-EA7E-4

Abstract

We report a detailed investigation by Raman spectroscopy of the holey nanographene C216, a hexagon-shaped disk with armchair edges (1.4 nm long), from which the central aromatic ring is missing. Density functional theory (DFT) calculations allow to assign the main features of the Raman spectra that have been recorded with several excitation wavelengths. In the Raman spectra, we observe signatures of the hole in the structure, several G and D modes, as well as their overtones and combinations-up to third order.