<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">For correct quantitative interpretation of Auger spectra of group III-nitrides and their alloys it is necessary to have the relative sensitivity factors of elements and the sputtering yields measured for the material under analysis. These data are not available in the literature for those materials. In this work, the quantities have been determined experimentally that are needed for reliable and precise quantitative interpretation of Auger spectra of such materials, thus of AlN, GaN and their ternary alloys Al<italic>x</italic>Ga1-<italic>x</italic>N. Measurements of reference AlN and GaN samples allowed to find the elemental sensitivity factors for these nitrides, and measurements on reference samples of ternary alloys Al<italic>x</italic>Ga1-<italic>x</italic>N allowed to find the ratio of the component sputtering yields, YGa/YAl. It has been confirmed that if the relative sensitivity factors are obtained from measurements of reference samples of group III-nitrides, thus of compounds, and if in the alloys of such compounds no further change of the shapes of Auger peaks occurs, the both the areas below the Auger peaks in direct spectra and the Auger peak-to-peak heights in differentiated spectra can be used for quantitative analysis.</abstract>

For correct quantitative interpretation of Auger spectra of group III-nitrides and their alloys it is necessary to have the relative sensitivity factors of elements and the sputtering yields measured for the material under analysis. These data are not available in the literature for those materials. In this work, the quantities have been determined experimentally that are needed for reliable and precise quantitative interpretation of Auger spectra of such materials, thus of AlN, GaN and their ternary alloys AlxGa1-xN. Measurements of reference AlN and GaN samples allowed to find the elemental sensitivity factors for these nitrides, and measurements on reference samples of ternary alloys AlxGa1-xN allowed to find the ratio of the component sputtering yields, YGa/YAl. It has been confirmed that if the relative sensitivity factors are obtained from measurements of reference samples of group III-nitrides, thus of compounds, and if in the alloys of such compounds no further change of the shapes of Auger peaks occurs, the both the areas below the Auger peaks in direct spectra and the Auger peak-to-peak heights in differentiated spectra can be used for quantitative analysis.

Contribution to the Quantitative Analysis of Ternary Alloys of Group III-Nitrides by Auger Spectroscopy

Department of Microelectronics, Slovak University of Technology, Ilkovičova 3, 812 19 Bratislava, Slovakia

Center for Micro- and Nanotechnologies, Technical University of Ilmenau, Gustav Kirchhoff-Str. 7, D-98693 Ilmenau, Germany

Journal of Electrical Engineering

For correct quantitative interpretation of Auger spectra of group III-nitrides and their alloys it is necessary to have the relative sensitivity factors of...

Contribution to the Quantitative Analysis of Ternary Alloys of Group III-Nitrides by Auger Spectroscopy

Publié en ligne: 07 juin 2011

Pages: 62 - 64

DOI: https://doi.org/10.2478/v10187-010-0009-4

Mots clés
GaN, AlN, AlGa-N, AES relative elemental sensitivity factors, component sputtering yields Y/Y

This content is open access.

Contribution to the Quantitative Analysis of Ternary Alloys of Group III-Nitrides by Auger Spectroscopy

Publié en ligne: 07 juin 2011

Pages: 62 - 64

DOI: https://doi.org/10.2478/v10187-010-0009-4

Mots clésGaN, AlN, AlGa-N, AES relative elemental sensitivity factors, component sputtering yields Y/Y

This content is open access.

Mots clés
GaN, AlN, AlGa-N, AES relative elemental sensitivity factors, component sputtering yields Y/Y