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Kushmerick, James G.; Hankins, Matthew G.; Boer, Maarten P. de; Clews, Peggy J.; Carpick, Robert W.; Bunker, Bruce C.

doi:10.1023/a:1009082530479

Cited by 38 publications

(24 citation statements)

References 9 publications

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“…The average roughness of this surface is 0.2 nm on a 1 ϫ 1 m 2 area base and peak to valley height variation is 2.6 nm. 19 In this case, islands were more pronounced and more separated than our case. The island like structures in the topography in Fig.…”

Section: A Characteristics Of Surfaces Coated With Bound Phase Onlysupporting

confidence: 38%

Atomic force microscope based analysis of bound and bound+mobile phase monolayer behavior under mechanical and electrical stress

Nainaparampil

Eapen

Zabinski

2004

Journal of Vacuum Science &Amp; Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena

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The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, SPONSORING/MONITORING AGENCY ACRONYM(S)AFRL/MLBT SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)Materials and DISTRIBUTION/AVAILABILITY STATEMENTApproved for public release; distribution is unlimited. SUPPLEMENTARY NOTESBest copy available. Published in the J. Vac. Sci. Technol. B 22(5), Sep/Oct 2004, pp. 2337-2344. This material is declared a work of the U.S. Government and is not subject to copyright protection in the United States. ABSTRACT (Maximum 200 Words), ,One of the major problems with microelectromechanical systems (MEMS) is the stiction caused by capillary, van der Waals, electrostatic, and chemical forces. Self-assembled monolayers are extensively used to resolve this problem and they have been effective to a certain extent. It has been noted that the molecular weight, entanglement of molecules with asperities, time dependent interactions between asperities and monolayers, and surface migration play major roles in the failure of these coatings. In addition, tribological stressing and diffusion at increased in the failure of these coatings. In addition, tribological stressing and diffusion at increased temperature can also cause monolayers to fail. In this study, atomic force microscopy (AFM) and related techniques are used to analyze the behavior of bound monolayer films of 1-decanol and bound 1-decanol combined with a mobile phase (a pentaerythritol ester). Molecular reorientation and surface detachment under electrostatic force increase with increasing electric field between the AFM tip and the film. One of the major problems wilh microclcclromcchanical systems (MEMS) is the stiction caused by capillary, van der Waals. electrostatic, and chemical forces. Self-assembled monolaycrs are extensively used to resolve this problem and they have been effective to a certain extent. It has been noted that the molecular weight, entanglement of molecules with asperities, time dependent interactions between asperities and monolayers, and surface migration play major roles in the failure of these coatings. In addition, tribological stressing and diffusion at increased temperature can also cause monolayers to fail. In this study, atomic force microscopy (AFM) and related techniques are used to analyze the behavior of bound monolayer films of 1-dccanol and bound l-dccanol combined with a mobile phase (a pentaerythritol ester). Molecular reorientation and surface detachment under electrostatic force increase with increasing electric field between the AFM tip and the film. The AFM tip is used as a single asperity contact to study the atomic scal...

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Section: A Characteristics Of Surfaces Coated With Bound Phase Onlysupporting

confidence: 38%

Atomic force microscope based analysis of bound and bound+mobile phase monolayer behavior under mechanical and electrical stress

Nainaparampil

Eapen

Zabinski

2004

Journal of Vacuum Science &Amp; Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena

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“…Perfluoroalkylchlorosilanes are representative candidates of organosilicon compounds used as modifiers to improve mainly the tribological features. Organic layers built of spontaneously adsorbed molecules on investigated surfaces exhibited growing potential as protective agents, which can be used in reducing friction, adhesion and wear, which was confirmed by other research [32,33]. Obtained results indicate their application potential in electromechanical systems as components of sensors and actuators used in many fields of technology and medicine [34].…”

Section: Introductionsupporting

confidence: 75%

The Effect of Physicochemical Properties of Perfluoroalkylsilanes Solutions on Microtribological Features of Created Self-Assembled Monolayers

et al. 2020

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The presented article shows the influence of concentration of perfluoroalkylsilanes in solutions on tribological properties of self-assembled monolayers (SAMs) deposited on three surfaces with different silicon content in the millinewton load range. The SAMs were created using the liquid phase deposition (LPD) method with 1H, 1H, 2H, 2H-perfluorodecyltrichlorosilane (FDTS) and (3, 3, 3-trifluoropropyl) trichlorosilane (FPTS) solutions, for which viscosity and surface tension were estimated. Deposited layers were analyzed in terms of thickness, coverage, wettability, structure and coefficient of friction. The obtained results demonstrated that SAMs created on the silicon-incorporated diamond-like carbon (Si-DLC) coatings possess the best microtribological properties. Systems composed of perfluoroalkylsilane SAM structures deposited on Si-DLC coatings are highly promising candidates as material for microelectromechanical applications.

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“…These compounds have low values of surface free energy, adhesive force, coefficient of friction, high thermal stability and contact angle values, and are promising alternative for overcoming the limitations of electromechanical devices' lifetime [28,29]. Mayer et al used fluoroalkylsilanes to control adhesion in microelectromechanical systems [30], Kushmerick et al showed that these compounds can play a role as antistiction layers in micromachines [31]. Much interest has been also attracted to the investigations of electrochemical or biological properties of the SAMs on metal electrodes and the fabrication of electrochemical sensors or biosensors for the detection of chemicals or biomolecules [32e34].…”

Section: Introductionmentioning

confidence: 99%

Tribological investigations of perfluoroalkylsilanes monolayers deposited on titanium surface

Cichomski

2012

Materials Chemistry and Physics

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Untitled

Cited by 38 publications

References 9 publications

Atomic force microscope based analysis of bound and bound+mobile phase monolayer behavior under mechanical and electrical stress

Atomic force microscope based analysis of bound and bound+mobile phase monolayer behavior under mechanical and electrical stress

The Effect of Physicochemical Properties of Perfluoroalkylsilanes Solutions on Microtribological Features of Created Self-Assembled Monolayers

Tribological investigations of perfluoroalkylsilanes monolayers deposited on titanium surface

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