Some of the following elements are not semiconductors, but exhibit a behaviour very similar to semiconductors when deposited in thin layers over other substrates.
Native Semiconductor
Symbol
Energy Gap (eV)
Silicon
Si
1.12
Germanium
Ge
0.661
Phosphorus
P
2.1
Sulfur
S
2.0
Carbon
C
5.45
Bismuth
Bi
0.024
Antimony
Sb
0.17
Binary Semiconductor Compounds
Binary Compound
Symbol
Energy Gap (eV)
Aluminum Arsenide
AlAs
2.16
Aluminum Nitride
AlN
6.2
Aluminum Phosphide
AlP
2.45
Antimony Telluride
Sb2Te3
0.21
Cadmium Sulfide
CdS
2.428
Cadmium Telluride
CdTe
1.5
Gallium Arsenide
GaAs
1.42
Gallium Nitride
GaN
3.43
Gallium Phosphide
GaP
2.24
Gallium Selenide
GaSe
2.1
Indium Arsenide
InAs
0.36
Indium Nitride
InN
0.69
Indium Phosphide
InP
1.344
Lead Selenide
PbSe
0.27
Silicon Carbide
SiC-3C
2.36
Silicon Carbide
SiC-4H
3.28
Silicon Carbide
SiC-6H
3.03
Zinc Oxide
ZnO
3.37
Zinc Selenide
ZnSe
2.7
Ternary Semiconductor Alloys
Ternary Alloy
Symbol
Energy Gap (eV)
Aluminum Gallium Arsenide
AlxGa1-xAs
1.42-2.16
Copper Indium Selenide
CuInSe2
1.04
Copper Gallium Selenide
CuGaSe2
1.7
Indium Gallium Nitride
InxGa1-xN
0.69-3.43
Mercury Cadmium Telluride
MCT or Hg1-xCdxTe
0-1.5
Quaternary Semiconductor Alloys
Quaternary Alloy
Symbol
Energy Gap (eV)
Copper Indium Gallium Selenide
CIGS or CuInxGa1-xSe2
1.0-1.7
Indium Gallium Arsenide Phosphide
GaxIn1-xAsyP1-y
0.36-2.24
Organic Semiconductors
Organic Semiconductor
Symbol
Energy Gap (eV)
Methylammonium lead halide
[CH3NH3]PbI3
1.51
Methylammonium lead halide
[CH3NH3]PbBr3
2.18
Organic Semiconductor
P3HT
2.0
Addendum
Energy gap graph for highly tunable semiconductor alloys - nature.com
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