66
4 Solid and Liquid Skins
82.5
83.0
83.5
84.0
84.5
85.0
Intensity (a.u.)
BE (eV)
Exp
B
S 2
S 1
Au(111)
hv=110 eV
(a)
82.5
83.0
83.5
84.0
84.5
85.0
Intensity (a.u.)
BE (eV)
Exp
B
S 2
S 1
Au(110)-(2x1)
hv = 110 eV
(b)
82.5
83.0
83.5
84.0
84.5
85.0
Intensity (a.u.)
BE (eV)
Exp
B
S 2
S 1
Au(100)
hv = 110 eV
(c)
82
83
84
85
86
BE (eV)
Clean
O 3 (intermid)
O 3 (full)
82
83
84
85
86
I (a.u)
BE (eV)
IO 3 (intermid)
IO 3 (full)
(d)
Fig. 4.5 Decomposition of the XPS (a–c) 4f 7/2 spectra for Au(111), Au(110), and Au(100) skins
[36], d 4f 7/2 ZPS of gold foil after O 3 treatment at 100 °C at different stages [37]. Oxidation polarizes
the skin (<83.5 eV) and an over dosage oxygen creates H-bond surface network that annihilates
partially the skin dipoles [38]. Reprinted with permission from [45]. Copyright 2015 Wiley-VCH
367.0 367.5 368.0 368.5 369.0 369.5
EXP
B
S 2
S 1
D
Intensity (a.u.)
BE (eV)
Ag(100) 3d 5/2
(a)
367.0 367.5 368.0 368.5 369.0 369.5
EXP
B
S 2
S 1
D
Ag(111) 3d 5/2
Intensity (a.u.)
(b)
BE (eV)
Fig. 4.6 Decomposition of the 3d 5/2 spectra of a Ag(001) and b Ag(111) skins [17, 46, 47] with
the bulk B, S 2 , and S 1 sublayers and defect D component. Reprinted with permission from [44].
Copyright 2012 American Chemical Society