Highlights

Graphene oxide windows for in situ environmental cell photoelectron spectroscopy

We develop a simple environmental cell with graphene oxide windows that are transparent to low-energy electrons (down to 400 eV), and demonstrate the feasibility of X-ray photoelectron spectroscopy on samples such aqueous salt solution.
Kolmakov et al., Nature Nanotechnology, 6, 651 (2011).
 

X-ray photoelectron spectroscopy generally require high-vacuum conditions. The state-of-the-art approach to increase the base pressure up to ambient condition relies on unique and expensive apparatus sophisticated differentially pumped electron lenses. We develop a simple environmental cell with graphene oxide windows that are transparent to low-energy electrons and demonstrate the feasibility of XPS measurements on model samples such aqueous salt solution placed on the back side of a window. These proof-of-principle results show the potential of using graphene oxide, graphene and other emerging ultrathin membrane windows.
for the fabrication of low-cost, single-use environmental cells compatible with commercial X-ray and Auger microprobes as well as scanning or transmission electron microscopes.

Retrieve article


Graphene oxide windows for in situ environmental cell photoelectron spectroscopy. A. Kolmakov, D. A. Dikin, L. J. Cote, J. Huang, M. Kazemian Abyaneh, M. Amati, L. Gregoratti, S. Günther & M. Kiskinova. Nature Nanotechnology, Published online (2011)

 

Last Updated on Thursday, 07 October 2021 18:34