Development of hard X-ray photoelectron spectroscopy in liquid cells using optimized microfabricated silicon nitride membranes

Capone, F.; Muntada, O.; Ramírez, J.C.; Esplandiu, M.J.; Dedryvère, R.; Grimaud, A.; Lassalle-Kaiser, B.; Céolin, D.; Pérez-Murano, F.; Rueff, J.-P.; Fraxedas, J.

doi:10.1107/S1600577524008865

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Figure 5
HAXPES spectra of the Au 4f region obtained with 5 keV photons of (orange) a 40 nm Au film and of (blue) a dispersion of Au NPs on a 25 nm-thick membrane in air and (red) a dispersion of Au NPs in MilliQ water in a static liquid cell. The green line corresponds to a previously measured Au film treated with oxygen plasma and measured with 1486.6 eV photons (Esplandiu et al., 2018

). The blue and red spectra have been shifted by +1.1 and −2.3 eV, respectively. The dashed line indicates the position of the oxidized Au 4f_7/2 peaks.

JOURNAL OF
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ISSN: 1600-5775

Volume 31| Part 6| November 2024| Pages 1505-1513

https://doi.org/10.1107/S1600577524008865

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