Question:
The energy gap (eV) at 300K of the material GaAs is
The energy gap (eV) at 300K of the material GaAs is
Show Hint
- Si (Silicon): 1.1 eV
- GaAs (Gallium Arsenide): 1.42 eV
- Ge (Germanium): 0.66 eV
Updated On: Feb 4, 2025
- 0.36
- 0.85
- 1.20
- 1.42
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding bandgap energy. - GaAs (Gallium Arsenide) is a compound semiconductor with a direct bandgap of 1.42 eV at 300K.
Step 2: Selecting the correct option. Since the bandgap of GaAs is 1.42 eV, the correct answer is (D).
Was this answer helpful?
0
0
Top Questions on Semiconductor
- Explain briefly the formation of diffusion current and drift current in a p-n junction diode.
- CBSE CLASS XII - 2025
- Physics
- Semiconductor
- In an intrinsic semiconductor, carrier’s concentration is \( 5 \times 10^8 \ \text{m}^{-3} \). On doping with impurity atoms, the hole concentration becomes \( 8 \times 10^{12} \ \text{m}^{-3} \).
[(a)] Identify (i) the type of dopant and (ii) the extrinsic semiconductor so formed.
[(b)] Calculate the electron concentration in the extrinsic semiconductor.- CBSE CLASS XII - 2025
- Physics
- Semiconductor
- At a temperature of 47°C the thermal voltage is (Given value of Boltzmann's constant = 1.38 x10\(^{-23}\) joule/°K):
- CUET (PG) - 2025
- Geophysics
- Semiconductor
- In a semiconductor, intrinsic concentration of charge carriers varies with:
- CUET (PG) - 2025
- Physics
- Semiconductor
- Which current does not contribute to a uniformly doped semiconductor:
View More Questions
Questions Asked in TANCET exam
- In a new temperature scale say \( ^oP \), the boiling and freezing points of water at one atmosphere are \( 100^o P \) and \( 300^o P \) respectively. Correlate this scale with the Centigrade scale. The reading of \( 0^o P \) on the Centigrade scale is:
- TANCET - 2024
- Thermodynamics
- Which is odd? Tortoise, Crab, Frog, Fish
- TANCET - 2024
- Statements and Conclusions
- 138, 142, 146, 150, ?, 142, 138
- TANCET - 2024
- Statements and Conclusions
If A + B means A is the mother of B; A - B means A is the brother of B; A % B means A is the father of B, and A \(\times\) B means A is the sister of B, which of the following shows that P is the maternal uncle of Q?
- TANCET - 2024
- Statements and Conclusions
- Pointing to a man, a woman said, "His mother is the only daughter of my mother." How is the woman related to the man?
- TANCET - 2024
- Statements and Conclusions
View More Questions