Growth and sacrificial oxidation of transition metal nanolayers

T. Tsarfati; E. Zoethout; Robbert Wilhelmus Elisabeth van de Kruijs; Frederik Bijkerk

doi:10.1016/j.susc.2009.02.027

Growth and sacrificial oxidation of transition metal nanolayers

T. Tsarfati, E. Zoethout, Robbert Wilhelmus Elisabeth van de Kruijs, Frederik Bijkerk

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

9 Citations (Scopus)

Abstract

Growth and oxidation of Au, Pt, Pd, Rh, Cu, Ru, Ni and Co layers of 0.3–4.3 nm thickness on Mo have been investigated with ARPES and AFM. Co and Ni layers oxidize while the Mo remains metallic. For nobler metals, the on top O and oxidation state of subsurface Mo increase, suggesting sacrificial e− donation by Mo. Au and Cu, in spite of their significantly lower surface free energy, grow in islands on Mo and actually promote Mo oxidation. Applications of the sacrificial oxidation in nanometer thin layers exist in a range of nanoscopic devices, such as nano-electronics and protection of e.g. multilayer X-ray optics for astronomy, medicine and lithography.

Original language	Undefined
Pages (from-to)	1041-1045
Number of pages	5
Journal	Surface science
Volume	603
Issue number	7
DOIs	https://doi.org/10.1016/j.susc.2009.02.027
Publication status	Published - 2009

Keywords

ARPES
Sacrificial oxidation
METIS-258511
d-Metals
Multilayers
Islanding
IR-72892

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10.1016/j.susc.2009.02.027

Cite this

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title = "Growth and sacrificial oxidation of transition metal nanolayers",

abstract = "Growth and oxidation of Au, Pt, Pd, Rh, Cu, Ru, Ni and Co layers of 0.3–4.3 nm thickness on Mo have been investigated with ARPES and AFM. Co and Ni layers oxidize while the Mo remains metallic. For nobler metals, the on top O and oxidation state of subsurface Mo increase, suggesting sacrificial e− donation by Mo. Au and Cu, in spite of their significantly lower surface free energy, grow in islands on Mo and actually promote Mo oxidation. Applications of the sacrificial oxidation in nanometer thin layers exist in a range of nanoscopic devices, such as nano-electronics and protection of e.g. multilayer X-ray optics for astronomy, medicine and lithography.",

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T1 - Growth and sacrificial oxidation of transition metal nanolayers

AU - Tsarfati, T.

AU - Zoethout, E.

AU - van de Kruijs, Robbert Wilhelmus Elisabeth

AU - Bijkerk, Frederik

PY - 2009

Y1 - 2009

N2 - Growth and oxidation of Au, Pt, Pd, Rh, Cu, Ru, Ni and Co layers of 0.3–4.3 nm thickness on Mo have been investigated with ARPES and AFM. Co and Ni layers oxidize while the Mo remains metallic. For nobler metals, the on top O and oxidation state of subsurface Mo increase, suggesting sacrificial e− donation by Mo. Au and Cu, in spite of their significantly lower surface free energy, grow in islands on Mo and actually promote Mo oxidation. Applications of the sacrificial oxidation in nanometer thin layers exist in a range of nanoscopic devices, such as nano-electronics and protection of e.g. multilayer X-ray optics for astronomy, medicine and lithography.

AB - Growth and oxidation of Au, Pt, Pd, Rh, Cu, Ru, Ni and Co layers of 0.3–4.3 nm thickness on Mo have been investigated with ARPES and AFM. Co and Ni layers oxidize while the Mo remains metallic. For nobler metals, the on top O and oxidation state of subsurface Mo increase, suggesting sacrificial e− donation by Mo. Au and Cu, in spite of their significantly lower surface free energy, grow in islands on Mo and actually promote Mo oxidation. Applications of the sacrificial oxidation in nanometer thin layers exist in a range of nanoscopic devices, such as nano-electronics and protection of e.g. multilayer X-ray optics for astronomy, medicine and lithography.

KW - ARPES

KW - Sacrificial oxidation

KW - METIS-258511

KW - d-Metals

KW - Multilayers

KW - Islanding

KW - IR-72892

U2 - 10.1016/j.susc.2009.02.027

DO - 10.1016/j.susc.2009.02.027

M3 - Article

VL - 603

SP - 1041

EP - 1045

JO - Surface science

JF - Surface science

SN - 0039-6028

IS - 7

ER -