Structural manipulation of ultrathin organic films on metal surfaces: the case of decane thiol/Au(111)

Gerlach, R.; Polanski, G.; Rubahn, H.-G.

doi:10.1007/s003390050594

Cited by 42 publications

(60 citation statements)

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“…Details can be found elsewhere. 16 In situ measurements of the crystalline structure of the substrate and of the grown films are performed by low energy electron diffraction (Multi Channelplate LEED, Omicron), 12 whereas ex situ optical and morphological properties are investigated. For the latter purpose we use polarized epifluorescence microscopy, UV-vis spectroscopy via a miniature spectrometer (Ocean Optics S2000) and atomic force microscopy (AFM, JPK NanoWizard).…”

Section: Methodsmentioning

confidence: 99%

Nanoaggregates from oligothiophenes and oligophenylenes: a systematic growth survey

et al. 2005

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The growth of nanoscopic oligophenylene and oligothiophene aggregates on muscovite mica by vacuum deposition has been investigated. In the case of para-phenylenes a dipole assisted self assembly generation of needle-like aggregates is observed on mica. At optimum fiber growth temperature phenylene aggregates grow in most cases without a layer of upright oriented molecules. In contrast, vacuum deposition of oligothiophenes results simultaneously in fibers of laying molecules as well as islands of upright molecules. Since both phenylenes and thiophenes are strongly polarizable but differ in the lattice parameters of the resulting crystalline overlayers a direct comparison between the two classes of molecules allows us to study the role of epitaxy on the growth of nanoaggregates. Besides straight aggregates we also observe thiophene rings on water and methanol treated mica surfaces, which consist of radially oriented, laying molecules.

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Section: Methodsmentioning

confidence: 99%

Nanoaggregates from oligothiophenes and oligophenylenes: a systematic growth survey

et al. 2005

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“…28 The adsorption of thiols on Au(111) has been investigated over a range of coverages using a variety of methods including STM and X-ray diffraction. [29][30][31][32][33][34] There is consensus concerning the observed structural 2-dimensional phases, [35][36][37][38][39][40][41] but the discussion about involved Au adatoms at the S-Au interface is still ongoing. 42 Among the thiol-based molecules, 4-Mercaptobenzoic acid (MBA) has received particular attention because it led to the unraveling of thiol-gold structures based on an adatom model on gold nanoclusters.…”

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confidence: 99%

AFM Imaging of Mercaptobenzoic Acid on Au(110): Submolecular Contrast with Metal Tips

Hauptmann

Robles

Abufager

et al. 2016

J. Phys. Chem. Lett.

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A self-assembled monolayer of mercaptobenzoic acid (MBA) on Au(110) is investigated with scanning tunneling and atomic force microscopy (STM and AFM) and density functional calculations. High-resolution AFM images obtained with metallic tips show clear contrasts between oxygen atoms and phenyl moieties. The contrast above the oxygen atoms is due to attractive covalent interactions, which is different than previously reported high-resolution images, where Pauli repulsion dominated the image contrast. We show that the bonding of MBA to the substrate occurs mainly through dispersion interactions, whereas the thiol-Au bond contributes only a quarter of the adsorption energy. No indication of Au adatoms mediating the thiol-Au interaction was found in contrast to other thiol-bonded systems. However, MBA lifts the Au(110)-(2 × 1) reconstruction.

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“…As alkanethiolate‐based SAMs in which the alkyl chains are orientated parallel to the substrate have only been observed previously as intermediates,27, 28 additional experiments were carried out by using high‐resolution scanning tunneling microscopy (STM). The STM data reproduced in Figure 2 clearly demonstrate the presence of a striped phase, which is a typical signature of low‐density, intermediate SAM phases 26.…”

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confidence: 99%

Kinetically Stable, Flat‐Lying Thiolate Monolayers

Badin¹,

Bashir²,

Krakert³

et al. 2007

Angew Chem Int Ed

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Structural manipulation of ultrathin organic films on metal surfaces: the case of decane thiol/Au(111)

Cited by 42 publications

References 0 publications

Nanoaggregates from oligothiophenes and oligophenylenes: a systematic growth survey

Nanoaggregates from oligothiophenes and oligophenylenes: a systematic growth survey

AFM Imaging of Mercaptobenzoic Acid on Au(110): Submolecular Contrast with Metal Tips

Kinetically Stable, Flat‐Lying Thiolate Monolayers

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