Letter

A review of molecular phase separation in binary self-assembled monolayers of thiols on gold surfaces(a)

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Published 29 November 2017 Copyright © EPLA, 2017
, , Self-assemblies of Inorganic and Organic Nanomaterials Citation Quy Ong et al 2017 EPL 119 66001 DOI 10.1209/0295-5075/119/66001

0295-5075/119/6/66001

Abstract

Binary self-assembled monolayers (SAMs) on gold surfaces have been known to undergo molecular phase separation to various degrees and have been subject to both experimental and theoretical studies. On gold nanoparticles in particular, binary SAMs ligand shells display intriguing morphologies. Consequently, unexpected behaviors of the nanoparticles with respect to their biological, chemical, and interfacial properties have been observed. It is critical that the phase separation of binary SAMs be understood at both molecular and macroscopic level to create, and then manipulate, the useful properties of the functionalized surfaces. We look into the current understanding of molecular phase separation of binary SAMs on gold surfaces, represented by Au(111) flat surfaces and Au nanoparticles, from both theoretical and experimental aspects. We point out shortcomings and describe several research strategies that will address them in the future.

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Footnotes

  • (a) 

    Contribution to the Focus Issue Self-assemblies of Inorganic and Organic Nanomaterials edited by Marie-Pule Pileni.

10.1209/0295-5075/119/66001