User menu

Accès à distance ? S'identifier sur le proxy UCLouvain

Quantitative Xps .2. Comparison Between Different Quantitative Approaches for 2 Different Spectrometers - Determination of the Contamination-reduced Thickness, Application of the Determined Transmission Functions and Accuracy Achieved

Primary tabs

Weng, LT. Vereecke, G. Genet, MJ. Rouxhet, Paul [UCL] Stonemasui, JH. Bertrand, Patrick [UCL] Stone, WEE.

The first principles model (FPM) has been compared with other quantitative approaches by using many standard samples. As a first step, the applicability of the theoretical dependence of I(C1s)/I(C KVV) on the reduced thickness (x) of a hydrocarbon surface contamination layer was checked and shown to be approximately correct only in the middle range of x. A semi-empirical relation between I(C 1s)/I(C KVV) and x has been developed. The advantage of this relation over that previously developed in the literature is that the transmission function of our spectrometer is well characterized. The reduced thickness calculated using this semi-empirical relation has been shown to be close to the real value. The comparison of atomic ratios calculated using these quantitative approaches has shown that the best approach is the FPM. For the samples investigated in this work, the introduction of the anisotropy parameter L is not necessary: in most cases, the influence of L is smaller than the observed errors; and in certain cases where the difference of L values is large, more consistent results are obtained when L is ignored. The FPM approach provides consistent results not only when an inter-comparison is made between different spectrometers but also when, within a given machine, the analysis conditions are varied. The accuracy of this approach is relatively good (with errors < 15%) and holds true even when comparing peaks separated by more than 1000 eV. Finally, the comparison of results obtained with different previously determined transmission functions has allowed us to test the applicability of the methods used for the determination of these transmission functions (see Part I).

Document type Article de périodique (Journal article) – Article de recherche
Publication date 1993
Language Anglais
Journal information "Surface and Interface Analysis" - Vol. 20, no. 3, p. 193-205 (1993)
Peer reviewed yes
Publisher John Wiley & Sons Ltd (W Sussex)
issn 0142-2421
e-issn 1096-9918
Publication status Publié
Affiliation UCL - FSA/MAPR - Département des sciences des matériaux et des procédés
Links
  1. Weng, Surf. Interface Anal., 20, 179 (1993)
  2. Wagner, Surf. Interface Anal., 3, 211 (1981)
  3. Seah, Surf. Interface Anal., 2, 222 (1980)
  4. Grant, Surf. Interface Anal., 14, 271 (1989)
  5. Seah, Surf. Interface Anal., 9, 85 (1986)
  6. Scofield, J. Electron Spectrosc. Relat. Phenom., 8, 129 (1976)
  7. Reilman, J. Electron Spectrosc. Relat. Phenom., 8, 389 (1976)
  8. Ebel, J. Electron Spectrosc. Relat. Phenom., 57, 357 (1991)
  9. Wagner, Surf. Interface Anal., 2, 53 (1980)
  10. Szajman, J. Electron Spectrosc. Relat. Phenom., 23, 97 (1981)
  11. Ashley, Surf. Interface Anal., 4, 52 (1982)
  12. Ashley, J. Electron Spectrosc. Relat. Phenom., 28, 177 (1982)
  13. Ebel, Surf. Interface Anal., 12, 172 (1988)
  14. Powell C. J., Energy and material dependence of the inelastic mean free path of low‐energy electrons in solids, 10.1116/1.573063
  15. Ebel, J. Electron Spectrosc. Relat. Phenom., 34, 313 (1984)
  16. Reich, J. Electron Spectrosc. Relat. Phenom., 56, 33 (1991)
  17. Battistoni, Surf. Interface Anal., 7, 117 (1985)
  18. presented at the Spring Meeting of the Eastern Electron Spectroscopy Society, Wilmington, DW (1990).
  19. Anthony, Surf. Interface Anal., 6, 95 (1984)
  20. Chaney, Surf. Interface Anal., 10, 36 (1987)
  21. Note of Surface Science Instruments, Nov. 19 (1987).
  22. PhD Thesis, Université Catholique de Louvain (1993).
  23. Stone-Masui J. H., Stone W. E. E., Characterization of Polystyrene Latices by Photoelectron and Infra-Red Spectroscopy, Polymer Colloids II (1980) ISBN:9781468436372 p.331-360, 10.1007/978-1-4684-3635-8_16
  24. Stone-Masui J., Steenhoudt P., Marteaux L., Stone W.E.E., Interaction between Polystyrene Latices and Catalase: Primarily Ionic or Hydrophobic?, Food Polymers, Gels and Colloids (1991) ISBN:9781855737877 p.482-484, 10.1533/9781845698331.1.482
  25. Hemminger, Surf. Interface Anal., 15, 323 (1990)
  26. Carrazza, Surf. Interface Anal., 17, 225 (1991)
  27. and (eds), Practical Surface Analysis, 2nd Edn, Vol. 1. Wiley, Chichester (1990).
  28. and (eds), Practical Surface Analysis, 2nd Edn, Vol. 1. Wiley, Chichester, page 93 (1990).
  29. Ebel, Surf. Interface Anal., 12, 137 (1988)
  30. and Eurocat round robin oxide group, to be published.
  31. Manson, J. Electron Spectrosc. Relat. Phenom., 1, 413 (1972)
  32. Goldberg, J. Electron Spectrosc. Relat. Phenom., 21, 285 (1981)
  33. Jablonski, Surf. Interface Anal., 14, 659 (1989)
  34. Baschenko, J. Electron Spectrosc. Relat. Phenom., 34, 305 (1984)
  35. Ebel, J. Electron Spectrosc. Relat. Phenom., 35, 155 (1985)
  36. Powell C. J., Seah M. P., Precision, accuracy, and uncertainty in quantitative surface analyses by Auger‐electron spectroscopy and x‐ray photoelectron spectroscopy, 10.1116/1.576956
  37. Shirley D. A., High-Resolution X-Ray Photoemission Spectrum of the Valence Bands of Gold, 10.1103/physrevb.5.4709
  38. Tougaard, Surf. Interface Anal., 11, 453 (1988)
Bibliographic reference Weng, LT. ; Vereecke, G. ; Genet, MJ. ; Rouxhet, Paul ; Stonemasui, JH. ; et. al. Quantitative Xps .2. Comparison Between Different Quantitative Approaches for 2 Different Spectrometers - Determination of the Contamination-reduced Thickness, Application of the Determined Transmission Functions and Accuracy Achieved. In: Surface and Interface Analysis, Vol. 20, no. 3, p. 193-205 (1993)
Permanent URL http://hdl.handle.net/2078.1/49807