Question

3. There are two Ga Al As LED's. One has a band energy gap of 1.540eV and the other has a band gap Energy unknown, but has x-0.15. 3.1. Find the aluminum mole fraction of x and the emission wavelength for the first Light emitting diod. 32. Determine the band-gap energy. Eg and the emission wavelength, λ of the second LED. nt E.424 1.26G 0.GG 1240 A 4 1:24o Gac,

Answer 1

0.266 근 Solvin 'we get )-619835 ev Ea 1.24