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Journal article

Quantification of impurity concentration in Cu2O and CuO via secondary ion mass spectrometry

Authors list: Laufer, A; Reppin, D; Metelmann, H; Geburt, S; Ronning, C; Leichtweiss, T; Janek, J; Meyer, BK

Publication year: 2012

Pages: 801-811

Journal: physica status solidi (b) – basic solid state physics

Volume number: 249

Issue number: 4

ISSN: 0370-1972

eISSN: 1521-3951

DOI Link: https://doi.org/10.1002/pssb.201147407

Publisher: Wiley

Abstract:
Secondary ion mass spectrometry (SIMS) is a technically matured analysis technique for the investigation of depth and lateral distributions in solids. The raw data of a SIMS measurement provides only qualitative information. For quantification so-called relative sensitivity factors (RSF) are mandatory. To our knowledge no RSFs have been determined for Cu2O and CuO so far. In this work the RSFs for 21 elements in Cu2O and 14 elements in CuO have been determined via ion implanted standards. For the RSF determination we present the plateau method (Section 3) for box-like implantation profiles. This method provides a lower uncertainty in RSF value compared to the obtained uncertainty using single implantation profiles. In addition, we have estimated the electron affinities of NO2, AsO2 and SbO to 0.55, 2.7 and 2.85?eV, respectively. Unexpectedly, we observe for Cu2O and CuO nearly identical RSF values. This behaviour cannot be attributed to a change in chemical composition caused by the SIMS sputter process. Furthermore, the calculated RSFs have been used to determine the impurity concentrations of our sputtered copper oxide thin films.

Authors/Editors

- Uni.-Prof. Dr. Jürgen Janek

Citation Styles

Harvard Citation style: Laufer, A., Reppin, D., Metelmann, H., Geburt, S., Ronning, C., Leichtweiss, T., et al. (2012) Quantification of impurity concentration in Cu2O and CuO via secondary ion mass spectrometry, physica status solidi (b) – basic solid state physics, 249(4), pp. 801-811. https://doi.org/10.1002/pssb.201147407

APA Citation style: Laufer, A., Reppin, D., Metelmann, H., Geburt, S., Ronning, C., Leichtweiss, T., Janek, J., & Meyer, B. (2012). Quantification of impurity concentration in Cu2O and CuO via secondary ion mass spectrometry. physica status solidi (b) – basic solid state physics. 249(4), 801-811. https://doi.org/10.1002/pssb.201147407