In:
ChemPhysChem, Wiley, Vol. 9, No. 15 ( 2008-10-24), p. 2185-2190
Abstract:
Ultrathin films of the ionic liquid (IL) 1‐ethyl‐3‐methylimidazolium bis(trifluoromethylsulfonyl)imide, [EMIM][Tf 2 N], are prepared on a glass substrate by means of an in situ thermal‐evaporation/condensation process under ultrahigh‐vacuum conditions. By using X‐ray photoelectron spectroscopy (XPS), it is demonstrated that the first layer of the IL film grows two dimensionally, followed by the three‐dimensional growth of successive layers. The first molecular layer consists of a bilayer, with the [EMIM] + cations in contact to the surface and the [Tf 2 N] − anions at the vacuum side. The ultrathin IL films are found to be stable under ambient conditions.
Type of Medium:
Online Resource
ISSN:
1439-4235
,
1439-7641
DOI:
10.1002/cphc.200800300
Language:
English
Publisher:
Wiley
Publication Date:
2008
detail.hit.zdb_id:
2025223-7