Graphene oxide windows for in situ environmental cell photoelectron spectroscopy

Andrei Kolmakov*, Dmitriy A. Dikin, Laura J. Cote, Jiaxing Huang, Majid Kazemian Abyaneh, Matteo Amati, Luca Gregoratti, Sebastian Günther, Maya Kiskinova

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

142 Scopus citations

Abstract

The performance of new materials and devices often depends on processes taking place at the interface between an active solid element and the environment (such as air, water or other fluids). Understanding and controlling such interfacial processes require surface-specific spectroscopic information acquired under real-world operating conditions, which can be challenging because standard approaches such as X-ray photoelectron spectroscopy generally require high-vacuum conditions. The state-of-the-art approach to this problem relies on unique and expensive apparatus including electron analysers coupled with sophisticated differentially pumped lenses. Here, 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 measurements on model samples such as gold nanoparticles and 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.

Original languageEnglish (US)
Pages (from-to)651-657
Number of pages7
JournalNature nanotechnology
Volume6
Issue number10
DOIs
StatePublished - Oct 2010

ASJC Scopus subject areas

  • Bioengineering
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Graphene oxide windows for in situ environmental cell photoelectron spectroscopy'. Together they form a unique fingerprint.

Cite this