Arrange the following in descending orders of Energy gaps of semiconductor Materials. A. Si B. Ge C. GaAs D. GaP Choose the correct answer from the options given below :
D, C, A, B
The question asks us to arrange semiconductor materials in descending order of their energy band gaps. The energy band gap is a critical property of semiconductor materials that influences their electrical conductivity and optical properties. In semiconductors, the energy band gap varies significantly between different materials.
Let's list the typical band gap values for each of the materials given in the options:
- Si (Silicon): The energy band gap is approximately 1.1 eV.
- Ge (Germanium): The energy band gap is approximately 0.66 eV.
- GaAs (Gallium Arsenide): The energy band gap is approximately 1.42 eV.
- GaP (Gallium Phosphide): The energy band gap is approximately 2.26 eV.
Now, we will arrange these materials in descending order of their energy gaps:
- GaP (2.26 eV) - Highest energy gap
- GaAs (1.42 eV)
- Si (1.1 eV)
- Ge (0.66 eV) - Lowest energy gap
The correct order is GaP, GaAs, Si, Ge, which corresponds to the option D, C, A, B. This explains why the correct answer is:
| Order | Material | Energy Band Gap (eV) |
|---|---|---|
| 1 | GaP | 2.26 |
| 2 | GaAs | 1.42 |
| 3 | Si | 1.1 |
| 4 | Ge | 0.66 |
Thus, the correct option is D, C, A, B, which arranges the materials correctly based on their energy band gaps from highest to lowest.
Similar Questions
Following are semiconductor materials arrange them in ascending order of their band gaps :
(a) Si
(b) Ge
(c) Ga N
(d) Ga As
The correct sequence in ascending order is given by
Following semiconductor materials are given :
(a) Si
(b) Ge
(c) GaP
(d) GaAs
Arrange them in ascending order of their band gap. The correct option is :
The following materials are given, arrange them in ascending order of their band gap :
(a) Germanium (b) Carbon (diamond) (c) Silicon carbide (d) Aluminium Nitride
Important Questions from Energy Band Gap
Which one of the following element has Forbidden energy band approximately equal to 6 eV?
The bandgap of Si at 300 K is:
For an intrinsic semiconductor at temperature 𝑇 = 0 𝐾, which of the following statement is true?
- Which of the following is correctly ordered according to the ascending order of band gap energy?
Which of the following is an intrinsic semiconductor?
