Porphyrin-fused graphene nanoribbons.

Autor: Chen Q; Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK. chenqiang@suda.edu.cn.; Max Planck Institute for Polymer Research, Mainz, Germany. chenqiang@suda.edu.cn.; Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, China. chenqiang@suda.edu.cn., Lodi A; Department of Materials, University of Oxford, Oxford, UK., Zhang H; Max Planck Institute for Polymer Research, Mainz, Germany., Gee A; Department of Materials, University of Oxford, Oxford, UK., Wang HI; Max Planck Institute for Polymer Research, Mainz, Germany.; Nanophotonics, Debye Institute for Nanomaterials Research, Utrecht University, Utrecht, the Netherlands., Kong F; Department of Materials, University of Oxford, Oxford, UK., Clarke M; School of Physics & Astronomy, University of Nottingham, Nottingham, UK., Edmondson M; School of Physics & Astronomy, University of Nottingham, Nottingham, UK., Hart J; School of Physics & Astronomy, University of Nottingham, Nottingham, UK., O'Shea JN; School of Physics & Astronomy, University of Nottingham, Nottingham, UK., Stawski W; Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK., Baugh J; Institute for Quantum Computing, University of Waterloo, Waterloo, Ontario, Canada., Narita A; Max Planck Institute for Polymer Research, Mainz, Germany., Saywell A; School of Physics & Astronomy, University of Nottingham, Nottingham, UK., Bonn M; Max Planck Institute for Polymer Research, Mainz, Germany., Müllen K; Max Planck Institute for Polymer Research, Mainz, Germany., Bogani L; Department of Materials, University of Oxford, Oxford, UK. lapo.bogani@unif.it.; Department of Chemistry & Physics, University of Florence, Sesto Fiorentino, Italy. lapo.bogani@unif.it., Anderson HL; Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK. harry.anderson@chem.ox.ac.uk.
Jazyk: angličtina
Zdroj: Nature chemistry [Nat Chem] 2024 Jul; Vol. 16 (7), pp. 1133-1140. Date of Electronic Publication: 2024 Mar 08.
DOI: 10.1038/s41557-024-01477-1
Abstrakt: Graphene nanoribbons (GNRs), nanometre-wide strips of graphene, are promising materials for fabricating electronic devices. Many GNRs have been reported, yet no scalable strategies are known for synthesizing GNRs with metal atoms and heteroaromatic units at precisely defined positions in the conjugated backbone, which would be valuable for tuning their optical, electronic and magnetic properties. Here we report the solution-phase synthesis of a porphyrin-fused graphene nanoribbon (PGNR). This PGNR has metalloporphyrins fused into a twisted fjord-edged GNR backbone; it consists of long chains (>100 nm), with a narrow optical bandgap (~1.0 eV) and high local charge mobility (>400 cm 2  V -1  s -1 by terahertz spectroscopy). We use this PGNR to fabricate ambipolar field-effect transistors with appealing switching behaviour, and single-electron transistors displaying multiple Coulomb diamonds. These results open an avenue to π-extended nanostructures with engineerable electrical and magnetic properties by transposing the coordination chemistry of porphyrins into graphene nanoribbons.
(© 2024. The Author(s).)
Databáze: MEDLINE
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