A conventional GaAs pn-junction based LED is operated at 300 K and driven by avoltage V, in series with a 80 resistance. The light output is required to be 1 mW.The injection efficiency is 100%, the extraction efficiency is 3%, and the radiativeand non-radiative recombination lifetimes are 40 and 80 ns, respectively. Calculatethe peak emission wavelength and the required voltage Vs. Assuming the GaAs pn-junction LED is working under strong forward bias and the band gap for GAAS isEg= 1.424 eV.

Concept: To determine the Peak emission wavelength, we can use the relation between the energy of…

Answered: A conventional GaAs pn-junction based…

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