Electronic Devices and Circuits - Engineering

Q1:

GaAs has an energy gap 1.43 eV the optical cut off wavelength of GaAs would lie in the

A visible region of the spectrum

B infrared region of the spectrum

C ultraviolet region of the spectrum

D for ultraviolet region of the spectrum

ANS:B - infrared region of the spectrum

GaAs has very large band gap and high carrier mobility.