Physics · Semiconductor Devices
Elemental semiconductors like Silicon (Si) and Germanium (Ge) are generally not suitable for fabricating efficient LASER diodes primarily because:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1They possess an indirect energy band gap structure.✓
- 2They possess a direct energy band gap structure.
- 3Their spontaneous emission coefficients are very low.
- 4Their absorption coefficients are extremely high.
Correct answer
They possess an indirect energy band gap structure.
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