X-ray photoelectron study of new mixed oxynitrides 'AlGaPON'
(1998) Symposium on Powder Characterisation for Advanced Materials Manufacture — Location: GIJON(Spain) (16.June.1997)
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- Abstract
- The galloaluminophosphate oxynitrides 'AlGaPON' are phosphates in which oxygen is substituted by nitrogen, by temperature-programmed activation under ammonia. By varying the time of nitridation at 750 degrees C, Sour oxynitrides with variable nitrogen contents were obtained. They were studied by X-ray photoelectron spectroscopy and compared to the oxide precursor. Care was taken to demonstrate that with the Mg anode Ga Auger and photoelectric peak superposition did not prevent a quantitative approach of the 'AlGaPON' surface composition. This study shows that the oxygen/nitrogen substitution occurs preferentially around phosphorous and gallium atoms rather than around aluminium atoms. The good con elation between surface and bulk nitrogen content suggests a homogeneous nitridation. (C) 1998 Elsevier Science Limited. All rights reserved.
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Citations
Delsarte, S., Peltier, V., Laurent, Y., & Grange, P. (1998). X-ray photoelectron study of new mixed oxynitrides ‘AlGaPON’. Journal of the European Ceramic Society, 18(9), 1287-1291. https://doi.org/10.1016/S0955-2219(98)00055-7 (Original work published 1998)