Physics · Optoelectronics
In the context of LEDs, what does the term 'quantum efficiency' refer to?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The number of photons absorbed per second.
- 2The ratio of the number of photons emitted into free space per second to the number of electrons injected into the LED per second.✓
- 3The efficiency of converting electric energy into magnetic fields.
- 4The efficiency of converting electric energy into heat.
Correct answer
The ratio of the number of photons emitted into free space per second to the number of electrons injected into the LED per second.
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