Abigail Bellamy-Carter
Self-assembly of a strapped linear porphyrin oligomer on HOPG
Bellamy-Carter, Abigail; Roche, Cécile; Anderson, Harry L; Saywell, Alex
Authors
Cécile Roche
Harry L Anderson
Dr ALEXANDER SAYWELL alex.saywell@nottingham.ac.uk
Assistant Professor
Abstract
Polymeric structures based on porphyrin units exhibit a range of complex properties, such as nanoscale charge transport and quantum interference effects, and have the potential to act as biomimetic materials for light-harvesting and catalysis. These functionalities are based upon the characteristics of the porphyrin monomers, but are also emergent properties of the extended polymer system. Incorporation of these properties within solid-state devices requires transfer of the polymers to a supporting substrate, and may require a high-degree of lateral order. Here we show that highly ordered self-assembled structures can be formed via a simple solution deposition protocol; for a strapped linear porphyrin oligomer adsorbed upon on a highly oriented pyrolytic graphite (HOPG) substrate. Two distinct molecule-molecule interactions are observed to drive the formation of two molecular phases ('Interdigitated' and 'Bridge-stabilised') characterised by scanning tunnelling microscopy, providing information on the unit cell dimensions and self-assembled structure. The concentration dependence of these phases is investigated, and we conclude that a bridge-stabilised phase is a thermodynamically stable structure at room temperature.
Citation
Bellamy-Carter, A., Roche, C., Anderson, H. L., & Saywell, A. (2021). Self-assembly of a strapped linear porphyrin oligomer on HOPG. Scientific Reports, 11, Article 20388
Journal Article Type | Article |
---|---|
Acceptance Date | Sep 22, 2021 |
Online Publication Date | Oct 14, 2021 |
Publication Date | 2021 |
Deposit Date | Oct 4, 2021 |
Publicly Available Date | Mar 29, 2024 |
Journal | Scientific Reports |
Electronic ISSN | 2045-2322 |
Peer Reviewed | Peer Reviewed |
Volume | 11 |
Article Number | 20388 |
Public URL | https://nottingham-repository.worktribe.com/output/6390387 |
Files
s41598-021-99881-x
(2.3 Mb)
PDF
Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/
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