MCQ
Which of the following cannot be used in electronic devices?
- AAluminium gallium arsenide
- BIndium gallium arsenide
- CGallium arsenide
- ✓Quasicrystals.
✓
Answer
Correct option: D.
Quasicrystals.
Aluminum gallium arsenide, indium gallium arsenide, and gallium arsenide are used in Laser diodes, $\text{LEDs}$, whereas Quasicrystals have poor heat conductivity which makes them good insulators, so not used in electronic devices.
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