title: An ARXPS and ERXPS study of quaternary ammonium and phosphonium ionic liquids: utilising a high energy Ag Lα' X-ray source.
abstract: A series of ammonium- and phosphonium-based ionic liquids have been probed using X-ray photoelectron spectroscopy (XPS) with a high energy Ag Lα' X-ray source. The capability of the Ag Lα' X-ray source for ionic liquid analysis is confirmed alongside the characterisation of previously undetected high energy core photoelectron emissions. Additionally, the utilisation of the Ag Lα' X-ray source as a depth profiling technique (ERXPS) to investigate the structure of the ionic liquid/vacuum interface has been demonstrated, with comparison made to angle resolved X-ray photoelectron spectroscopy (ARXPS).
authors: The GlaxoSmithKline Carbon Neutral Laboratory, School of Chemistry, The University of Nottingham, Nottingham NG7 2RD, UK. peter.licence@nottingham.ac.uk.
authors: Rebecca K
authors: RK
authors: Blundell
authors: The GlaxoSmithKline Carbon Neutral Laboratory, School of Chemistry, The University of Nottingham, Nottingham NG7 2RD, UK. peter.licence@nottingham.ac.uk.
authors: Astrid E
authors: AE
authors: Delorme
authors: The GlaxoSmithKline Carbon Neutral Laboratory, School of Chemistry, The University of Nottingham, Nottingham NG7 2RD, UK. peter.licence@nottingham.ac.uk.
authors: Emily F
authors: EF
authors: Smith
authors: The GlaxoSmithKline Carbon Neutral Laboratory, School of Chemistry, The University of Nottingham, Nottingham NG7 2RD, UK. peter.licence@nottingham.ac.uk.
authors: Peter
authors: P
authors: Licence