Please read the notes following the table.
band | bandgap Eg (eV) | relative | |||
---|---|---|---|---|---|
elements | type(a) | 0 K[2] | 300 K | permittivity | |
C | I | 5.48 | 5.50 | 5.570 | |
Si | I | 1.17 | 1.1242 | 11.9 | |
Ge | I | 0.74 | 0.664 | 16.2 | |
Sn[2] | D | 0.082 | - | - | |
IV-IV | |||||
c-SiC | I | 2.42[4] | 2.416 | 9.72 | |
aSiC[2] | I | 3.03 | 2.996 | 10.0 | |
h-SiC | I | 3.33[4] | - | - | |
III-V | |||||
c-BN | I | - | 6.4 | 7.1 | |
h-BN | I | - | 5.2 | || = 5.06 _|_ = 6.85 | |
BP | I | - | 2.4 | 11 | |
BAs | - | - | - | - | |
AlN | D | - | 6.2 | (9.14) | |
AlP | I | - | 2.45 | 9.8 | |
AlAs | I | 2.36 | 2.153 | 10.06 | |
AlSb | I | 1.68 | 1.615 | 12.04 | |
c-GaN | D | 3.30[5] | - | - | |
h-GaN | D | 3.50[5] | 3.44 | || = 10.4 _|_ = 9.5 | |
GaP | I | 2.34 | 2.272 | 11.11 | |
GaAs | D | 1.52 | 1.4241 | 13.18 | |
GaSb | D | 0.81 | 0.75 | 15.69 | |
c-InN | - | - | - | - | |
h-InN | D | - | 0.7(b)[6] | - | |
InP | D | 1.42 | 1.344 | 12.56 | |
InAs | D | 0.42 | 0.354 | 15.15 | |
InSb | D | 0.23 | 0.230 | 16.8 | |
II-VI | |||||
BeO[3] | - | - | - | - | |
BeS[3] | - | - | - | - | |
BeSe[3] | - | - | - | - | |
BeTe[3] | - | - | - | - | |
BePo[3] | - | - | - | - | |
h-ZnO | D | - | 3.44 | || = 8.75 _|_ = 7.8 | |
c-ZnO[2] | D | 3.42 | 3.35 | 9.0 | |
c-ZnS | D | 3.84 | 3.68 | 8.9 | |
h-ZnS | D | - | 3.9107 | (9.6) | |
ZnSe | D | - | 2.8215 | 9.1 | |
c-ZnTe | D | - | 2.3941 | 8.7 | |
h-ZnTe[3] | - | - | - | - | |
ZnPo[3] | - | - | - | - | |
CdO | I | - | 0.84 | 21.0 | |
c-CdS | D | 2.56 | 2.50 | - | |
h-CdS | D | - | 2.501 | (9.38) | |
c-CdSe | D | - | - | - | |
h-CdSe | D | 1.85 | 1.751 | || = 10.16 _|_ = 9.29 | |
CdTe | D | - | 1.475 | 10.2 | |
HgS[3] | - | - | - | - | |
HgSe[3] | - | - | - | - | |
HgTe[3] | - | - | - | - | |
IV-VI | |||||
PbS | D* | 0.286 | 0.41 | 169 | |
PbSe | D* | - | 0.278 | 210 | |
PbTe | D* | 0.19 | 0.310 | 414 | |
(a) I = indirect, D = direct, * = gap at L point.
(b) The previously accepted value for Eg in InN of about 1.89 eV is now thought to be far too large: see ref. [6].
Whilst every effort is made to ensure the information given here is correct, it is possible there may be some mistakes. If you notice any errors, or have any suggestions, please contact the author.
Values are taken from ref. [1] unless rows, columns, or items are marked otherwise.
Christopher D. Latham | 27th December 2005 | HTML 4.0 |