Lower workfn: Li,K,Eu,Sr,Ba,Sm,Na,Ca,
Ca,Ce,Li,Tb,Gd,Y,Nd,Lu,Th,La,Sc,Cs,Rb.
+
+
+
-4
H+ /H 2
NHE–
SCE–
-5
+
+
+ +
+
+ + +
+
+ + +
+
CB
TiO2?
Tb
Y
Nd
Lu
Th
TaN
La,Sc
U
Zn
Mg,As
Tl,Hf
Zr
Cd,In
Mn
Al
Pb
Ta
V,Ga
Nb
Ti,Bi
Sn
B,Hg
Cr
Mo
Sb
W
Ag
Ru
Re
Fe
Cu
Si
Te,Be
Rh
TaC
C
Co,Ge
Ni
Pd
Au
Ir
Pt
Se
-3
InN: 0.7 eV
GaN: 3.4 eV
AlN: 6.0
AlP: 2.45
GaP: 2.26
AlAs: 2.170
AlInP/GaAs
GaInP/GaAs
GaAs: 1.420
InP: 1.350
InGaAs 0.76
InAlAs 1.460
AlSb: 1.550
InAs: 0.360
GaSb: 0.770
InSb: 0.220
MgTe: 3.46.
MgSe: 3.62.
ZnS: 3.59.
ZnTe: 2.20.
ZnSe: 2.73.
CdTe: 1.49.
CdS: 2.44.
CdSe: 1.76.
C60 PCBM
MDMO-PPV
ZnO: 3.37
TiO2: 3.2 eV
PbO: 2.8
WO3: 2.7
SrTiO3: 3.7
BaTiO3: 3.3
FeTiO3: 2.9
KaTaO3: 3.5
MnTiO3: 3.1
SnO2: 3.5
Bi2O3: 2.9
Fe2O3: 2.3
Si3N4: 5.3
SiO2: 9
sapphire 8.8
Ca,Ce,Gc,Er
-0.08
Diamond: 5.5 eV
Si: 1.1 eV
Ge: 0.7 eV
eV from Vacuum Level
-2
Bandgap+Workfunction Heaven (v.3.4)
Assembled by M. Wistey (mwistey (at) nd.edu) from sources below. This is just a rough guide: strain, interfaces, Fermi
pinning, etc. will change apparent band lineups, and may not be transitive. Data have not been verified and could even be wrong. Corrections welcome.-1.0 -1.0
+ + + +
+
+ +
+ + + +
MoNx
+
+ + + +
(110)
+
+ + + + +
+ +
VB
+
O2/H2O–
+
-6
Workfn
Approx band offsets: Robertson JAP 2006 and
http://ematsolar.lbl.gov/images. CRC Workfns:
http://www.hbcpnetbase.com/articles/12_21_86.pdf.
Band_offsets_all_NHE_SCE_0906_v04.pdf
Walukiewicz, Physica B 302-303, 123 (2001).
van de Walle, Nature 423, 626 (2003).
Bak, Int. J. Hydrogen Energy 27, 991 (2002).
key:
min
typ.
+
max
-8
-8.06
HfO2, 6.0eV
ZrO2, 5.8
HfSiO4, 6.5
La2O3, 6.0
LaAlO3, 5.6
PbTiO3, 3.4
Ta2O5, 4.4
Ga2O3, 4.8
Gd2O3, 5.8
-7
+ +
-8.09
-8.15
-8.40