Probing optical excitations in chevron-like armchair graphene nanoribbons
Denk R, Lodi-Rizzini A, Wang S, Hohage M, Zeppenfeld P, Cai J, Fasel R, Ruffieux P, Berger RFJ, Chen Z, Narita A, Feng X, Muellen K, Biagi R, De Renzi V, Prezzi D, Ruini A, Ferretti A (2017)
Publication Type: Journal article
Publication year: 2017
Journal
Book Volume: 9
Pages Range: 18326-18333
Journal Issue: 46
DOI: 10.1039/c7nr06175g
Abstract
The bottom-up fabrication of graphene nanoribbons (GNRs) has opened new opportunities to specifically tune their electronic and optical properties by precisely controlling their atomic structure. Here, we address excitation in GNRs with periodic structural wiggles, the so-called chevron GNRs. Based on reflectance difference and high-resolution electron energy loss spectroscopies together with ab initio simulations, we demonstrate that their excited-state properties are of excitonic nature. The spectral fingerprints corresponding to different reaction stages in their bottom-up fabrication are also unequivocally identified, allowing us to follow the exciton build-up from the starting monomer precursor to the final GNR structure.
Involved external institutions
Johannes Kepler Universität (JKU) Linz
Austria (AT)
Università degli Studi di Modena e Reggio Emilia (UNIMORE)
Italy (IT)
Consiglio Nazionale delle Ricerche (CNR) / National Research Council of Italy
Italy (IT)
Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa) / Swiss Federal Laboratories for Materials Science & Technology
Switzerland (CH)
Technische Universität Dresden
Germany (DE)
Max-Planck-Institut für Polymerforschung (MPI-P) / Max Planck Institute for Polymer Research
Germany (DE)
Austria (AT)
Università degli Studi di Modena e Reggio Emilia (UNIMORE)
Italy (IT)
Consiglio Nazionale delle Ricerche (CNR) / National Research Council of Italy
Italy (IT)
Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa) / Swiss Federal Laboratories for Materials Science & Technology
Switzerland (CH)
Technische Universität Dresden
Germany (DE)
Max-Planck-Institut für Polymerforschung (MPI-P) / Max Planck Institute for Polymer Research
Germany (DE)
How to cite
APA:
Denk, R., Lodi-Rizzini, A., Wang, S., Hohage, M., Zeppenfeld, P., Cai, J.,... Ferretti, A. (2017). Probing optical excitations in chevron-like armchair graphene nanoribbons. Nanoscale, 9(46), 18326-18333. https://doi.org/10.1039/c7nr06175g
MLA:
Denk, Richard, et al. "Probing optical excitations in chevron-like armchair graphene nanoribbons." Nanoscale 9.46 (2017): 18326-18333.
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