Ultra Thin Film Analysis using Thermo VG Scientifics Thetaprobe Instrument

Champaneria, R.; Wolstenholme, John

doi:10.1007/978-1-4615-0563-1_3

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2002

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“…The cumulative effects of exposure to x-rays are therefore maximized in the last measurement made. The other (VG Theta Probe 12 ) is a new instrument in which, by means of a two-dimensional detector and a special angular dispersive lens mode, data can be collected that are resolved in both photoelectron energy and photoemission angle, and by employing a monochromatic x-ray source the effects of the much reduced oxygen loss are distributed over the range of angles measured.…”

Section: Introductionmentioning

confidence: 99%

Degradation during ARXPS measurements of polystyrene treated with an oxygen plasma

Paynter

2002

Surface & Interface Analysis

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Thin polystyrene films, deposited on glass substrates, were exposed to an oxygen / helium plasma for 3s, 7s, 15s or 30s. Following exposure to air for four weeks, the samples were analyzed by ARXPS in a VG ESCALAB 220i X-ray photoelectron spectrometer and in a VG Theta Probe instrument. Comparison of the results obtained demonstrates the effect of the oxygen loss during analysis in the VG ESCALAB 220i, which flattens the angle-resolved profiles obtained and leads to the calculation of an oxygen depth profile which extends deeper into the surface and in which the oxygen concentration is lower. A simple procedure for the correction of the data obtained in the VG ESCALAB 220i is only partially successful at reconciling the derived oxygen depth profile with that calculated from the Theta Probe data.

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Section: Introductionmentioning

confidence: 99%

Degradation during ARXPS measurements of polystyrene treated with an oxygen plasma

Paynter

2002

Surface & Interface Analysis

View full text Add to dashboard Cite

show abstract

Ultra Thin Film Analysis using Thermo VG Scientifics Thetaprobe Instrument

Cited by 1 publication

References 0 publications

Degradation during ARXPS measurements of polystyrene treated with an oxygen plasma

Degradation during ARXPS measurements of polystyrene treated with an oxygen plasma

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