104 The benecial interaction between Au and MnOx
Mn2pAu(50%)-MnOx
Au(30%)-MnOx
MnOx
10.1eV
b)
6356406456506556606656707580859095100
Au(50%)
-MnOx
Au(50%)-MnOx
Au(30%)-MnOx
320325330335340345350355360365526528530532534
Intensity/Normalized
BindingEnergy/eV
c)d)
MnOx
Mn3s
Intensity/Normalized
BindingEnergy/eV
a)
5.4eV
Au4d
Intensity/Normalized
BindingEnergy/eV
Au(30%)
-MnOx
O1s
Intensity/Normalized
BindingEnergy/eV
MnOx
Figure 6.5: XPS spectra for the three lms. a) Mn2p region. An arrow indicates
the distance for the Mn2p1
2 satellite. b) Mn3s region. An arrow indicates the distance
between the two peaks. c) Au4d region. d) O1s region. For all the spectra pure MnOx
is shown in black, Au(30 %)-MnOx in blue and Au(50 %)-MnOx in red.
b)
#
GA-XRDonMnOxthinfilm
20304050607080902030405060708090
#
#
#
##
#
#MnOx
Mn3O4ref
Mn2O3ref
2 q / o
MnO2ref
#
a)
#
###
#
Au50-MnO#x
Au30-MnOx
GA-XRDonAu-MnOx
thinfilms
2 q / o
Auref
#
#
Figure 6.6: X-ray diractograms. a) Pure MnOx lms (in black) together with
references from literature. Mn3O4 reference (purple) is from 231, Mn2O3 (green) is
from 232 and MnO2 (teal) is from 233. b) Au(30 %)-MnOx (blue) lm and Au(50
%)-MnOx (red) together with an Au reference (orange) from 234.