Selfassembly of α,ω-dithiols on surfaces and metal dithiol heterostructures

Hicham Hamoudi, Vladimir A. Esaulov

Research output: Contribution to journalReview article

15 Citations (Scopus)

Abstract

α,ω-Dithiols present an interesting case of molecules with two reactive terminal -SH groups (HS-R-SH) that allow their use as binders between different metallic entities. They have thus been used in molecular electronics conduction measurements, in "nanogap" electrodes of interest in plasmonics, as building blocks of more complex structures such as metal intercalated superlattices and in the formation of metalized organic thin films, including doped graphene type films. There exist however many problems, because the molecules may end up in undesirable configurations with both thiol terminals bound to the same metal particle/substrate or link with other molecules to produce "multi-molecule" or "multilayer" structures. This report discusses various key questions on dithiol linking with metal surfaces and the quest of protocols of making problem free dithiol metal structures. It then describes the use of dithiols and their SAMs to produce various metal organic heterostructures useful for molecular electronics and formation of doped metalized organic thin films. We discuss the build up of these structures by self assembly and lithography, their chemical composition and functional properties. α,ω-Dithiols with reactive terminal thiol groups (HS-R-SH) can be used as a glue between metallic entities. This has been used to measure molecular conductance, create nano-spacers of interest in plasmonics, and build complex metal organic structures, including doped graphene type films. This report discusses key questions regarding protocols of making optimal dithiol metal structures and then describes their build by self assembly and lithography, their chemical composition and functional properties.

Original languageEnglish
Pages (from-to)242-263
Number of pages22
JournalAnnalen der Physik
Volume528
Issue number3-4
DOIs
Publication statusPublished - 1 Apr 2016

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thiols
metals
molecular electronics
self assembly
molecules
graphene
chemical composition
lithography
glues
metal particles
thin films
spacers
laminates
metal surfaces
superlattices
conduction
electrodes
configurations

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Selfassembly of α,ω-dithiols on surfaces and metal dithiol heterostructures. / Hamoudi, Hicham; Esaulov, Vladimir A.

In: Annalen der Physik, Vol. 528, No. 3-4, 01.04.2016, p. 242-263.

Research output: Contribution to journalReview article

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