Reversible on-surface wiring of resistive circuits

Abstract : Whilst most studies in single-molecule electronics involve components first synthesized ex situ, there is also great potential in exploiting chemical transformations to prepare devices in situ. Here, as a first step towards this goal, we conduct reversible reactions on monolayers to make and break covalent bonds between alkanes of different lengths, then measure the conductance of these molecules connected between electrodes using the scanning tunneling microscopy-based break junction (STM-BJ) method. In doing so, we develop the critical methodology required for assembling and disassembling surface-bound single-molecule circuits. We identify effective reaction conditions for surface-bound reagents, and importantly demonstrate that the electronic characteristics of wires created in situ agree with those created ex situ. Finally, we show that the STM-BJ technique is unique in its ability to definitively probe surface reaction yields both on a local (similar to 50 nm(2)) and pseudo-global (>= 10 mm(2)) level. This investigation thus highlights a route to the construction and integration of more complex, and ultimately functional, surface-based single-molecule circuitry, as well as advancing a methodology that facilitates studies beyond the reach of traditional ex situ synthetic approaches.
Document type :
Journal articles
Complete list of metadatas

Cited literature [58 references]  Display  Hide  Download

https://hal-univ-rennes1.archives-ouvertes.fr/hal-01542762
Contributor : Laurent Jonchère <>
Submitted on : Wednesday, September 27, 2017 - 2:11:51 PM
Last modification on : Saturday, December 22, 2018 - 7:33:42 PM
Long-term archiving on : Thursday, December 28, 2017 - 1:30:42 PM

File

Inkpen - Reversible on-surface...
Publisher files allowed on an open archive

Identifiers

Citation

Michael S. Inkpen, Yann R. Leroux, Philippe Hapiot, Luis M. Campos, Latha Venkataraman. Reversible on-surface wiring of resistive circuits. Chemical Science , The Royal Society of Chemistry, 2017, 8 (6), pp.4340-4346. ⟨10.1039/c7sc00599g⟩. ⟨hal-01542762⟩

Share

Metrics

Record views

162

Files downloads

59