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Imaging an ionic liquid adlayer by scanning tunneling microscopy at the solid vertical bar vacuum interface

Research output: Contribution to journalJournal article

Published
  • Thomas Waldmann
  • Hsin-Hui Huang
  • Harry E. Hoster
  • Oliver Hoefft
  • Frank Endres
  • R. Juergen Behm
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<mark>Journal publication date</mark>4/10/2011
<mark>Journal</mark>ChemPhysChem
Issue number14
Volume12
Number of pages3
Pages (from-to)2565-2567
Publication statusPublished
Original languageEnglish

Abstract

Structure formation in an ionic liquid adlayer: First molecularly resolved scanning tunneling microscopy images of an ionic liquid adlayer ([Py1,4]+ [FAP]− (see image)), evaporated on a Au(111) surface, resolve a molecular pattern at 210 K with a distinct short range order, indicating a 2D solid, while at room temperature, the mobility of the adlayer is too high to resolve molecular features, as expected for a 2D liquid.