Highly oriented, self-assembled alkanephosphate monolayers on tantalum(V) oxide surfaces

Dorothee Brovelli; Georg Hähner; Laurence Ruiz; Rolf Hofer; Gerolf Kraus; Adrian Waldner; Johanna Schlösser; Peter Oroszlan; Markus Ehrat; Nicholas D. Spencer

doi:10.1021/la981758n

Highly oriented, self-assembled alkanephosphate monolayers on tantalum(V) oxide surfaces

Dorothee Brovelli, Georg Hähner, Laurence Ruiz, Rolf Hofer, Gerolf Kraus, Adrian Waldner, Johanna Schlösser, Peter Oroszlan, Markus Ehrat, Nicholas D. Spencer

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

97 Citations (Scopus)

Abstract

Octadecyl phosphoric acid ester has been found to produce oriented, well-ordered monolayers on a flat tantalum(V) oxide surface, via self-assembly from a heptane/propan-2-ol solution. By means of contact angle, optical waveguide lightmode spectroscopy (OWLS), near-edge X-ray absorption fine structure spectroscopy (NEXAFS), and X-ray photoelectron spectroscopy (XPS) measurements, it has been shown that these layers closely resemble those formed by the corresponding thiol-gold system, with respect to packing density, inclination, and order. The system shows promise as an approach to functionalizing oxide surfaces with well-ordered organic monolayers, with potential applications in the fields of biochemical analysis and sensors.

Original language	English
Pages (from-to)	4324-4327
Number of pages	4
Journal	Langmuir
Volume	15
Issue number	13
DOIs	https://doi.org/10.1021/la981758n
Publication status	Published - 1 Jan 1999

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abstract = "Octadecyl phosphoric acid ester has been found to produce oriented, well-ordered monolayers on a flat tantalum(V) oxide surface, via self-assembly from a heptane/propan-2-ol solution. By means of contact angle, optical waveguide lightmode spectroscopy (OWLS), near-edge X-ray absorption fine structure spectroscopy (NEXAFS), and X-ray photoelectron spectroscopy (XPS) measurements, it has been shown that these layers closely resemble those formed by the corresponding thiol-gold system, with respect to packing density, inclination, and order. The system shows promise as an approach to functionalizing oxide surfaces with well-ordered organic monolayers, with potential applications in the fields of biochemical analysis and sensors.",

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T1 - Highly oriented, self-assembled alkanephosphate monolayers on tantalum(V) oxide surfaces

AU - Brovelli, Dorothee

AU - Hähner, Georg

AU - Ruiz, Laurence

AU - Hofer, Rolf

AU - Kraus, Gerolf

AU - Waldner, Adrian

AU - Schlösser, Johanna

AU - Oroszlan, Peter

AU - Ehrat, Markus

AU - Spencer, Nicholas D.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Octadecyl phosphoric acid ester has been found to produce oriented, well-ordered monolayers on a flat tantalum(V) oxide surface, via self-assembly from a heptane/propan-2-ol solution. By means of contact angle, optical waveguide lightmode spectroscopy (OWLS), near-edge X-ray absorption fine structure spectroscopy (NEXAFS), and X-ray photoelectron spectroscopy (XPS) measurements, it has been shown that these layers closely resemble those formed by the corresponding thiol-gold system, with respect to packing density, inclination, and order. The system shows promise as an approach to functionalizing oxide surfaces with well-ordered organic monolayers, with potential applications in the fields of biochemical analysis and sensors.

AB - Octadecyl phosphoric acid ester has been found to produce oriented, well-ordered monolayers on a flat tantalum(V) oxide surface, via self-assembly from a heptane/propan-2-ol solution. By means of contact angle, optical waveguide lightmode spectroscopy (OWLS), near-edge X-ray absorption fine structure spectroscopy (NEXAFS), and X-ray photoelectron spectroscopy (XPS) measurements, it has been shown that these layers closely resemble those formed by the corresponding thiol-gold system, with respect to packing density, inclination, and order. The system shows promise as an approach to functionalizing oxide surfaces with well-ordered organic monolayers, with potential applications in the fields of biochemical analysis and sensors.

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Highly oriented, self-assembled alkanephosphate monolayers on tantalum(V) oxide surfaces

Abstract

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