- Titel
- Solution Synthesis and Characterization of a Long and Curved Graphene Nanoribbon with Hybrid Cove–Armchair–Gulf Edge Structures
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa2-895086
- Quellenangabe
- Advanced science
Erscheinungsjahr: 2022
Jahrgang: 9
Heft: 19
E-ISSN: 2198-3844
Artikelnummer: 2200708 - Erstveröffentlichung
- 2022
- Abstract (EN)
- Curved graphene nanoribbons (GNRs) with hybrid edge structures have recently attracted increasing attention due to their unique band structures and electronic properties as a result of their nonplanar conformation. This work reports the solution synthesis of a long and curved multi-edged GNR (cMGNR) with unprecedented cove–armchair–gulf edge structures. The synthesis involves an efficient A2B2-type Diels–Alder polymerization between a diethynyl-substituted prefused bichrysene monomer (3b) and a dicyclopenta[e,l]pyrene-5,11-dione derivative (6) followed by FeCl3-mediated Scholl oxidative cyclodehydrogenation of the obtained polyarylenes (P1). Model compounds 1a and 1b are first synthesized to examine the suitability and efficiency of the corresponding polymers for the Scholl reaction. The successful formation of cMGNR from polymer P1 bearing prefused bichrysene units is confirmed by FTIR, Raman, and solid-state NMR analyses. The cove-edge structure of the cMGNR imparts the ribbon with a unique nonplanar conformation as revealed by density functional theory (DFT) simulation, which effectively enhances its dispersibility in solution. The cMGNR has a narrow optical bandgap of 1.61 eV, as estimated from the UV–vis absorption spectrum, which is among the family of low-bandgap solution-synthesized GNRs. Moreover, the cMGNR exhibits a carrier mobility of ≈2 cm2 V−1 s−1 inferred from contact-free terahertz spectroscopy.
- Andere Ausgabe
- Link zum Artikel der zuerst in der Zeitschrift „Advanced science'” bei Wiley erschienen ist.
DOI: 10.1002/advs.202200708 - Verweis
- Ergänzendes Material ist unter folgendem Link zu finden.
Link: https://onlinelibrary.wiley.com/doi/10.1002/advs.202200708#support-information-section - Freie Schlagwörter (DE)
- gekrümmt, Diels-Alder-Polymerisation, Graphen-Nanoband, niedrige Bandlücke, Multi-Edge-Struktur
- Freie Schlagwörter (EN)
- curved, Diels–Alder polymerization, graphene nanoribbon, low bandgap, multi-edge structure
- Klassifikation (DDC)
- 500
- 600
- 624
- Verlag
- Wiley-VCH, Weinheim
- Förder- / Projektangaben
- European Commission (EC)
H2020 | SGA-RIA
Graphene Flagship Core Project 3
(Graphene Core 3)
ID: 881603 - European Commission (EC)
H2020 | MSCA-ITN-ETN
Bottom-Up generation of atomicalLy precise syntheTIc 2D MATerials for high performance in energy and Electronic applications – A multi-site innovative training action
(ULTIMATE)
ID: 813036 - European Commission (EC)
H2020 | ERC | ERC-COG
Development of Thiophene Based Conjugated Polymers in Two Dimensions
(T2DCP)
ID: 819698 - Deutsche Forschungsgemeinschaft (DFG)
Zentrum für Perspektiven in der Elektronik Dresden
(EXC 1056)
ID: 194636624 - European Commission (EC)
H2020 | RIA
MULTI-ELECTRON PROCESSES FOR LIGHT DRIVEN ELECTRODES AND ELECTROLYTES IN CONVERSION AND STORAGE OF SOLAR ENERGY
(LIGHTCAP)
ID: 101017821 - Deutsche Forschungsgemeinschaft (DFG)
Untersuchung synthetischer Ansätze für nicht-alternierende ring topologien in Graphen Nanostrukturen
(EnhanTopo)
ID: 429265950 - Interdisciplinary Center for Mathematical and Computational Modelling, University of Warsaw ID: G83-28
- Deutsche Forschungsgemeinschaft (DFG)
SFB 858: Synergetische Effekte in der Chemie - Von der Additivität zur Kooperativität
ID: 104405829 - Consortium des Équipements de Calcul Intensif (CÉCI)
Fonds de la Recherche Scientifique de Belgique
(F.R.S.-FNRS)
ID: 2.5020.11 - Fédération Wallonie- Bruxelles, Walloon Region Tier-1 supercomputer
ID: 1117545. D.B. - Version / Begutachtungsstatus
- publizierte Version / Verlagsversion
- URN Qucosa
- urn:nbn:de:bsz:14-qucosa2-895086
- Veröffentlichungsdatum Qucosa
- 22.04.2024
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch
- Lizenz / Rechtehinweis
CC BY 4.0