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← TechnologyWhich outcome occurs when a laser diode LED's current limit is exceeded?
A)Thermal runaway causes efficiency loss✓
B)Phosphor conversion shifts spectral output
C)Increased carrier mobility enhances efficiency
D)Quantum confinement effect reduces wavelength
💡 Explanation
Exceeding the current limit in a laser diode causes thermal runaway, because increased heat generation enhances carrier concentration fluctuations. Therefore, power conversion efficiency decreases rather than spectral shift or improved performance due to better mobility.
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