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- Title
Bottom-Up Synthesis of Necklace-Like Graphene Nanoribbons.
- Authors
Schwab, Matthias Georg; Narita, Akimitsu; Osella, Silvio; Hu, Yunbin; Maghsoumi, Ali; Mavrinsky, Alexey; Pisula, Wojciech; Castiglioni, Chiara; Tommasini, Matteo; Beljonne, David; Feng, Xinliang; Müllen, Klaus
- Abstract
Graphene nanoribbons (GNRs) with an unprecedented 'necklace-like' structure were synthesized through a bottom-up chemical approach, based on the oxidative cyclodehydrogenation of tailor-made polyphenylene precursors. A polycyclic aromatic hydrocarbon consisting of 84 sp2 carbons ( C84) was also synthesized and characterized as a model compound. Characterizations by a combination of MALDI-TOF MS and FTIR, Raman, and UV/Vis absorption spectroscopy validated the formation of the necklace-like GNRs. The absorption spectrum and DFT calculations revealed a bandgap of approximately 1.4 eV for this novel GNR system, which has not been attained with other GNR structures, enabling further fine-tuning of GNR bandgaps by structural modulation.
- Subjects
GRAPHENE synthesis; NANORIBBONS; DEHYDROGENATION; POLYCYCLIC aromatic hydrocarbons; ABSORPTION spectra
- Publication
Chemistry - An Asian Journal, 2015, Vol 10, Issue 10, p2134
- ISSN
1861-4728
- Publication type
Article
- DOI
10.1002/asia.201500450