Comprehensive Investigation of Self-Assembled Monolayer Formation on Ferromagnetic Thin Film Surfaces

Hoertz, Paul G.; Niskala, Jeremy R.; Dai, Pengcheng; Black, Hayden T.; You, Wei

doi:10.1021/ja800278a

Cited by 47 publications

(57 citation statements)

References 29 publications

(49 reference statements)

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“…In a more recent report, electroreduction concurrent with SAM formation on Ni surfaces was demonstrated using basic solutions saturated with alkane thiol [387]. The optimal applied potential for electroreduction of NiO was determined by measuring the surface coverage of Fc(CH 2 ) 11 SH on electroreduced samples [388]. …”

Section: Electrode Materialsmentioning

confidence: 99%

Electrochemistry of redox-active self-assembled monolayers

Eckermann

Feld

Shaw

et al. 2010

Coordination Chemistry Reviews

525

492

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Redox-active self-assembled monolayers (SAMs) provide an excellent platform for investigating electron transfer kinetics. Using a well-defined bridge, a redox center can be positioned at a fixed distance from the electrode and electron transfer kinetics probed using a variety of electrochemical techniques. Cyclic voltammetry, AC voltammetry, electrochemical impedance spectroscopy, and chronoamperometry are most commonly used to determine the rate of electron transfer of redoxactivated SAMs. A variety of redox species have been attached to SAMs, and include transition metal complexes (e.g., ferrocene, ruthenium pentaammine, osmium bisbipyridine, metal clusters) and organic molecules (e.g., galvinol, C 60 ). SAMs offer an ideal environment to study the outer-sphere interactions of redox species. The composition and integrity of the monolayer and the electrode material influence the electron transfer kinetics and can be investigated using electrochemical methods. Theoretical models have been developed for investigating SAM structure. This review discusses methods and monolayer compositions for electrochemical measurements of redox-active SAMs.

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Section: Electrode Materialsmentioning

confidence: 99%

Electrochemistry of redox-active self-assembled monolayers

Eckermann

Feld

Shaw

et al. 2010

Coordination Chemistry Reviews

525

492

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“…Investigations used SCAs for determining the deposition factors, such as immersion time, concentration of molecules or gas pressure, were performed by Bhushan, Liakos and Hoertz [36,48,49].…”

Section: Optimization Of Deposition Time Parameters and Surface Free mentioning

confidence: 99%

Tribological investigations of perfluoroalkylsilanes monolayers deposited on titanium surface

Cichomski

2012

Materials Chemistry and Physics

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“…Since the first reports on the formation of SAMs, monofunctionalized long alkane chains (C n H 2n+1 X; CnX through the rest of the text) have proven themselves as one of the preferred and most successful self-assembling units. 21,22 At the end of the chain, phosphonic acids (CnP) have been widely used for the functionalization of metal oxides, 21,22 while thiols (CnS) have been the common choice for the functionalization of coinage metals 23,24 and in some cases ferromagnetic metals like nickel [25][26][27][28][29][30] or cobalt. 28,31,32 SAMs have found wide application in different aspects of organic electronics.…”

Section: B Experiments With Self-assembled Monolayersmentioning

confidence: 99%

Recovering ferromagnetic metal surfaces to fully exploit chemistry in molecular spintronics

et al. 2015

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Organic spintronics is a new emerging field that promises to offer the full potential of chemistry to spintronics, as for example high versatility through chemical engineering and simple low cost processing. However, one key challenge that remains to be unlocked for further applications is the high incompatibility between spintronics key materials such as high Curie temperature Co, Ni, Fe (and their alloys) and wet chemistry. Indeed, the transition metal proneness to oxidation has so far hampered the integration of wet chemistry processes into the development of room temperature organic spintronics devices. As a result, they had mainly to rely on high vacuum physical processes, restraining the choice of available organic materials to a small set of sublimable molecules. In this letter, focusing on cobalt as an example, we show a wet chemistry method to easily and selectively recover a metallic surface from an air exposed oxidized surface for further integration into spintronics devices. The oxide etching process, using a glycolic acid based solution, proceeds without increasing the surface roughness and allows the retrieval of an oxygen-free chemically active cobalt layer. This unlocks the full potential of wet chemistry processes towards room temperature molecular spintronics with transition metals electrodes. We demonstrate this by the grafting of alkylthiols self-assembled monolayers on recovered oxidized cobalt surfaces. C 2015 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License. [http://dx.

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Comprehensive Investigation of Self-Assembled Monolayer Formation on Ferromagnetic Thin Film Surfaces

Cited by 47 publications

References 29 publications

Electrochemistry of redox-active self-assembled monolayers

Electrochemistry of redox-active self-assembled monolayers

Tribological investigations of perfluoroalkylsilanes monolayers deposited on titanium surface

Recovering ferromagnetic metal surfaces to fully exploit chemistry in molecular spintronics

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