On-surface polymerisation and self-assembly of DPP-based molecular wires
Publication Date
July 26, 2023
Creators
Description
The incorporation of organic semiconducting materials within solid-state electronic devices provides a potential route to highly efficient photovoltaics, transistors, and light emitting diodes. Key to the realisation of such devices is efficient intramolecular charge transport within molecular species, as well as intermolecular/interdomain transport, which necessitates highly ordered supramolecular domains. The on-surface synthesis of polymeric organic materials (incorporating donor and/or acceptor moieties) is one pathway towards the production of highly ordered molecular domains. Here we study the formation of a polymer based upon a diketopyrrolopyrrole (DPP) monomer unit, possessing aryl-halide groups to facilitate on-surface covalent coupling and functionalised with alkyl chains which drive the self-assembly of both the monomer material prior to reaction and the domains of polymeric material following on-surface synthesis. The self-assembled structure of close-packed domains of the monomer units, and the ordered polymers, are investigated and characterised using scanning tunnelling microscopy and X-ray photoelectron spectroscopy.
Associate publ. DOI
Subjects
Subjects (JACS)
Subjects (LC)
Divisions
University of Nottingham, UK Campus::Faculty of Science::School of Physics and Astronomy
Data type
Scanning tunnelling microscopy (STM) images; X-ray photoelectron spectroscopy (XPS) data
Funders
Royal Society
Agència de Gestió d'Ajuts Universitaris i de Recerca (AGAUR)
Grant Number
(AGAUR) Grant 2021SGR01085.
Data collection method
Omicron STM-1 RT-UHV system; SPECS DeviSim near ambient pressure XPS (NAP-XPS) instrument
Resource languages
English
Publisher
The University of Nottingham
Date Issued
July 26, 2023
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Data_DPP-based molecular wires.zip
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131.48 MB
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