Figure 3.
Intensity of F 1s and Ag 3d signals from XPS in 0° emission as a function of temperature, upon continuous heating of thin films of [C8C1Im][Tf2N] (1.6 ML) and [C8C1Im][PF6] (1.4 ML) from RT to 500 K with a heating rate of 2 K/min. The stability range of the multilayers is shaded in dark grey, that of the isolated WLs in light grey. The desorption temperatures of the multilayers and wetting layers, that is, the rate maxima (as determined from the inflection points of the decreasing signals), are indicated as vertical arrows. For [C8C1Im][Tf2N], the multilayer and WL desorption temperatures are 365 and 420 K, respectively, and for [C8C1Im][PF6] 405 and 445 K, respectively.