Topic: Semiconductor Devices
Electron mobility of the following intrinsic elements in descending order is:
- A. GaAs, Ge, Si
- B. GaAs, Si, Ge
- C. Si, Ge, GaAs
- D. Ge, Si, GaAs
Answer: A. GaAs, Ge, Si
Explanation: The value of mobility of electrons in GaAs, Si, Ge are 8500, 3800, 1300 cm²/V-sec respectively. Hence, GaAs > Ge > Si.