Oligomerization of Dehydrogenated Polycyclic Aromatic Hydrocarbons on Highly Oriented Pyrolytic Graphite

Weippert J, Hauns J, Bachmann J, Greisch JF, Narita A, Muellen K, Boettcher A, Kappes MM (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Journal of Physical Chemistry C American Chemical Society

Book Volume: 124

Pages Range: 8236-8246

Journal Issue: 15

DOI: 10.1021/acs.jpcc.0c00883

Abstract

Electron impact ionization was used to generate dehydrogenated monocationic fragments of polycyclic aromatic hydrocarbons (PAHs) coronene, pentacene, hexabenzocoronene, dicoronylene, and rubrene. Upon mass-selective soft-landing deposition onto highly oriented pyrolytic graphite (HOPG) surfaces, these dehydrogenated monomeric species can form strongly bound dimers and oligomers interlinked via newly formed annulated benzene rings as detected by subsequent desorption experiments. The oligomerization degree can be influenced by varying the cation beam composition. The largest desorbable oligomers ranged up to pentamers for both coronene and pentacene fragments. PAH oligomers formed in this way can be considered as short sublimable graphene nanoribbons (GNRs).

Involved external institutions

Karlsruhe Institute of Technology (KIT) DE Germany (DE) Universiteit Utrecht (UU) / Utrecht University NL Netherlands (NL) Max-Planck-Institut für Polymerforschung (MPI-P) / Max Planck Institute for Polymer Research DE Germany (DE)

How to cite

APA:

Weippert, J., Hauns, J., Bachmann, J., Greisch, J.-F., Narita, A., Muellen, K.,... Kappes, M.M. (2020). Oligomerization of Dehydrogenated Polycyclic Aromatic Hydrocarbons on Highly Oriented Pyrolytic Graphite. Journal of Physical Chemistry C, 124(15), 8236-8246. https://doi.org/10.1021/acs.jpcc.0c00883

MLA:

Weippert, Juergen, et al. "Oligomerization of Dehydrogenated Polycyclic Aromatic Hydrocarbons on Highly Oriented Pyrolytic Graphite." Journal of Physical Chemistry C 124.15 (2020): 8236-8246.

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