Question
Download Solution PDFThe forbidden energy gap for silicon is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe forbidden energy gap for silicon is 1.1 eV
Forbidden energy gap (ΔEg):
The energy gap between the conduction band and valence band is known as the forbidden energy gap i.e.
ΔEg = (C.B)min - (V.B)max
- No free electron is present in the forbidden energy gap.
- The width of the forbidden energy gap depends upon the nature of the substance.
- As temperature increases, the forbidden energy gap decreases very slightly.
|
Semiconductor Materials |
||
|
Material |
Chemical Symbol |
Bandgap Energy (eV) |
|
Germanium |
Ge |
0.72 |
|
Silicon |
Si |
1.1 |
|
Gallium Arsenide |
GaAs |
1.4 |
|
Cadmium Sulphate |
CdS |
2.4 |
|
Silicon Carbide |
SiC |
3.3 |
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