Polymer thin films as universal substrates for extreme ultraviolet absorption spectroscopy of molecular transition metal complexes

Yusef Shari ati, Josh Vura-Weis

Research output: Contribution to journalArticlepeer-review

Abstract

Polystyrene and polyvinyl chloride thin films are explored as sample supports for extreme ultraviolet (XUV) spectroscopy of molecular transition metal complexes. Thin polymer films prepared by slip-coating are flat and smooth, and transmit much more XUV light than silicon nitride windows. Analytes can be directly cast onto the polymer surface or co-deposited within it. The M-edge XANES spectra (40-90 eV) of eight archetypal transition metal complexes (M = Mn, Fe, Co, Ni) are presented to demonstrate the versatility of this method. The films are suitable for pump/probe transient absorption spectroscopy, as shown by the excited-state spectra of Fe(bpy)3 2+ in two different polymer supports.

Original languageEnglish (US)
Pages (from-to)1850-1857
Number of pages8
JournalJournal of Synchrotron Radiation
Volume28
DOIs
StatePublished - Nov 1 2021

Keywords

  • extreme ultraviolet spectroscopy
  • polymers
  • sample preparation
  • thin films
  • X-ray absorption spectroscopy

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Instrumentation

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