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Nanoconfined self-assembly on a grafted graphitic surface under electrochemical control

Research output: Contribution to Journal/MagazineJournal articlepeer-review

<mark>Journal publication date</mark>7/01/2017
Issue number1
Number of pages7
Pages (from-to)362-368
Publication StatusPublished
Early online date7/12/16
<mark>Original language</mark>English


Highly oriented pyrolytic graphite (HOPG) can be covalently grafted with aryl radicals generated via the electrochemical reduction of 3,5-bis-tert-butyl-diazonium cations (3,5-TBD). The structure of the grafted layer and its stability under electrochemical conditions were assessed with electrochemical scanning tunneling microscopy (EC-STM) and cyclic voltammetry (CV). Stable within a wide (>2.5 V) electrochemical window, the grafted species can be locally removed using EC-STM-tip nanolithography. Using dibenzyl viologen as an example, we show that the generated nanocorrals of bare graphitic surface can be used to study nucleation and growth of self-assembled structures under conditions of nanoconfinement and electrochemical potential control. © 2017 The Royal Society of Chemistry.