In-Situ XPS Measurement of Co Nanoparticles Fabricated by Gas Evaporation Method

Tsuyoshi Mizutani; Satoshi Ogawa; Chie Tsukada; Koji Nakanishi; Toshiaki Ohta; Shinya Yagi

doi:10.1380/ejssnt.2012.351

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In-Situ XPS Measurement of Co Nanoparticles Fabricated by Gas Evaporation Method

Tsuyoshi Mizutani, Satoshi Ogawa, Chie Tsukada, Koji Nakanishi, Toshiaki Ohta, Shinya Yagi

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Keywords: X-ray photoelectron spectroscopy, Cobalt, Nitrides, nanoparticles

JOURNAL FREE ACCESS

2012 Volume 10 Pages 351-354

DOI https://doi.org/10.1380/ejssnt.2012.351

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Abstract

The cobalt and cobalt nitride nanoparticles (NPs) have been fabricated by gas evaporation method under helium or nitrogen gases environment. These chemical states and compositions have been investigated by in-situ XPS and those distributions have been estimated by AFM. It is found that both cobalt and cobalt nitride NPs are slightly oxidized by the residual gas in the chamber. The cobalt nitride NPs fabricated under nitrogen gas are including the nitrogen atoms at 4.7% and the nitrogen atoms have the chemical bonding with the cobalt atoms. [DOI: 10.1380/ejssnt.2012.351]

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