Compound semiconductors

What does LED stand for?

  1. ALow Energy Device
  2. BLight Emitting Diode
  3. CLiquid Electric Display
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Answer: B. Light Emitting Diode

LED stands for light emitting diode. It is a diode that emits light when forward current flows through its PN junction and electrons and holes recombine. A liquid crystal display is an LCD, which is different from an LED.

  • A. LED is not an abbreviation for this.
  • B. Correct. It stands for light emitting diode.
  • C. This confuses LED with LCD, the abbreviation for liquid crystal display.
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More Compound semiconductors questions

  1. What type of band structure does gallium arsenide (GaAs) have?
  2. Which is classified as a III-V compound semiconductor?
  3. What is the main reason GaAs has been used in RF amplifiers for mobile phones and similar applications?
  4. What are InP (indium phosphide)-based compound semiconductors mainly used for?
  5. Which material is mainly used in the light-emitting layer of blue LEDs?