BLUF

GaN is a semiconductor material that has replaced silicon in transistors.

Summary

  1. Utilised in LEDs since the 1990s; applied in solar panels later.
  2. GaN transistors: smaller, more efficient, faster switching than silicon.
  3. GaN USB chargers: compact size.
  4. Essential for modern USB-C chargers; Qi2 Wireless Charging compatible.

References