Laboratory-Based High Pressure X-ray Photoelectron Spectroscopy: A Novel and Flexible Reaction Cell Approach


Author: Gwilherm Kerherve, Anna Regoutz, David Bentley, Colin Hood, Keith Feeley, Stewart Knight, Anthony Robson, Craig Turner, Nick Singh, John Pontefract, John Åhlund, Juhan M Kahk, Ignacio J Vill AIP Logo  | © AIP Publishing Review of Scientific Instruments
Date: 2017
Instruments: HiPP-2, VUV5k

The last 10-15 years have witnessed a resurgence in the application of high pressure X-ray photoelectron spectroscopy, mainly through the development of new electron energy analyser designs and the utilization of high-brilliance synchrotron radiation sources. To continue this expansion of the technique, it is crucial that instruments are developed for the home-laboratory, considering that this is where the vast majority of traditional ultra-high vacuum (UHV) X-ray photoelectron spectroscopy is performed. The research presented here introduces a new addition to the field, an instrument capable of performing spectroscopy measurements from UHV to high pressure (25 mbar), achieved using a retractable and modular reaction cell design. The ease of use, stability (of analyser, X-ray source, and gas delivery, etc.), and overall capability of the instrument will be demonstrated.