Q. Which of the following statement about Gallium Nitride is/are not correct?

[A] Gallium Nitride (GaN) is a very soft, mechanically instable wide bandgap semiconductor.

[B] Ita has Wurtzite crystal structure.

[C] It has high heat capacity, sensitivity to ionizing radiation is low, faster-switching speed, higher thermal conductivity and lower on-resistance.

[D] It has wide ranging applications like LEDs and lasers, Transistors and Integrated Circuits.

Answer: A
Notes:

About Gallium Nitride:

  • Gallium Nitride (GaN) is a very hard, mechanically stable wide bandgap semiconductor. The compound is a very hard material that has a Wurtzite crystal structure.
  • It has high heat capacity; sensitivity to ionizing radiation is low, faster-switching speed, higher thermal conductivity and lower on-resistance.
  • It has wide ranging applications like LEDs and lasers, Transistors and Integrated Circuits, Solar Cell Arrays for Satellites, Nanotubes and nanowires in electronics, and 5G Devices.

 

Source: EPIC March 2022

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