2
1 Introduction: Functions and Performances Governed by the Work Function
Material
(solid/liquid)
electron
Material A
(solid)
Material B
(solid)
electron
Solar cells
MOS
Fuel cells
BaƩeries
Catalysts
Sensors
Electron source for
microscopes and other
analyƟcal instruments and
photocathodes
a)
b)
vacuum
Fig. 1.1 Some examples of applications related to a electron emission (electron transfer into
vacuum or gas phase) and b electron transfer between two materials (see text for details)
Fig. 1.2 Band alignment for
ideal Schottky contact
between metal and n-type
semiconductor (see text for
explanation)
SBH =
- EA
E VAC
E C
E V
E F
E F
E VAC
ΔE
-
metal
n-type
semiconductor
SBH
1 Introduction: Functions and Performances Governed by the Work Function
Material
(solid/liquid)
electron
Material A
(solid)
Material B
(solid)
electron
Solar cells
MOS
Fuel cells
BaƩeries
Catalysts
Sensors
Electron source for
microscopes and other
analyƟcal instruments and
photocathodes
a)
b)
vacuum
Fig. 1.1 Some examples of applications related to a electron emission (electron transfer into
vacuum or gas phase) and b electron transfer between two materials (see text for details)
Fig. 1.2 Band alignment for
ideal Schottky contact
between metal and n-type
semiconductor (see text for
explanation)
SBH =
- EA
E VAC
E C
E V
E F
E F
E VAC
ΔE
-
metal
n-type
semiconductor
SBH