Quantification of fluorine density in the outermost atomic layer

R.D. van de Grampel; W. Ming; A. Gildenpfennig; J. Laven; H.H. Brongersma; G. With, de; R. Linde, van der

doi:10.1021/la0353071

Quantification of fluorine density in the outermost atomic layer

R.D. van de Grampel, W. Ming, A. Gildenpfennig, J. Laven, H.H. Brongersma, G. With, de, R. Linde, van der

Research output: Contribution to journal › Article › Academic › peer-review

29 Citations (Scopus)

Abstract

The outermost at. layer of perfluorinated thiol monolayers on gold and poly(tetrafluoroethylene) (PTFE) is analyzed by low-energy ion scattering. Abs. quantification of fluorine d. in this layer was achieved after calibrating the fluorine signal with a freshly cleaved LiF(100) single crystal. The fluorine d. of monolayers of a C8F17-thiol on gold was 1.48 * 1015 F atoms/cm2, whereas for PTFE a value of 1.24 * 1015 F atoms/cm2 was obsd. This difference was explained by the different tilt angles of the thiol on gold and PTFE chains with respect to the surface normal. Both a configurational and a mol. interpretation on the perfluorinated thiol monolayer on gold are given.

Original language	English
Pages (from-to)	145-149
Journal	Langmuir
Volume	20
Issue number	1
DOIs	https://doi.org/10.1021/la0353071
Publication status	Published - 2004

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title = "Quantification of fluorine density in the outermost atomic layer",

abstract = "The outermost at. layer of perfluorinated thiol monolayers on gold and poly(tetrafluoroethylene) (PTFE) is analyzed by low-energy ion scattering. Abs. quantification of fluorine d. in this layer was achieved after calibrating the fluorine signal with a freshly cleaved LiF(100) single crystal. The fluorine d. of monolayers of a C8F17-thiol on gold was 1.48 * 1015 F atoms/cm2, whereas for PTFE a value of 1.24 * 1015 F atoms/cm2 was obsd. This difference was explained by the different tilt angles of the thiol on gold and PTFE chains with respect to the surface normal. Both a configurational and a mol. interpretation on the perfluorinated thiol monolayer on gold are given.",

author = "{van de Grampel}, R.D. and W. Ming and A. Gildenpfennig and J. Laven and H.H. Brongersma and {With, de}, G. and {Linde, van der}, R.",

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doi = "10.1021/la0353071",

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journal = "Langmuir",

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T1 - Quantification of fluorine density in the outermost atomic layer

AU - van de Grampel, R.D.

AU - Ming, W.

AU - Gildenpfennig, A.

AU - Laven, J.

AU - Brongersma, H.H.

AU - With, de, G.

AU - Linde, van der, R.

PY - 2004

Y1 - 2004

N2 - The outermost at. layer of perfluorinated thiol monolayers on gold and poly(tetrafluoroethylene) (PTFE) is analyzed by low-energy ion scattering. Abs. quantification of fluorine d. in this layer was achieved after calibrating the fluorine signal with a freshly cleaved LiF(100) single crystal. The fluorine d. of monolayers of a C8F17-thiol on gold was 1.48 * 1015 F atoms/cm2, whereas for PTFE a value of 1.24 * 1015 F atoms/cm2 was obsd. This difference was explained by the different tilt angles of the thiol on gold and PTFE chains with respect to the surface normal. Both a configurational and a mol. interpretation on the perfluorinated thiol monolayer on gold are given.

AB - The outermost at. layer of perfluorinated thiol monolayers on gold and poly(tetrafluoroethylene) (PTFE) is analyzed by low-energy ion scattering. Abs. quantification of fluorine d. in this layer was achieved after calibrating the fluorine signal with a freshly cleaved LiF(100) single crystal. The fluorine d. of monolayers of a C8F17-thiol on gold was 1.48 * 1015 F atoms/cm2, whereas for PTFE a value of 1.24 * 1015 F atoms/cm2 was obsd. This difference was explained by the different tilt angles of the thiol on gold and PTFE chains with respect to the surface normal. Both a configurational and a mol. interpretation on the perfluorinated thiol monolayer on gold are given.

U2 - 10.1021/la0353071

DO - 10.1021/la0353071

M3 - Article

SN - 0743-7463

VL - 20

SP - 145

EP - 149

JO - Langmuir

JF - Langmuir

IS - 1

ER -

Quantification of fluorine density in the outermost atomic layer

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