GaP Homojunction LEDs Fabricated by Dressed-Photon-Phonon-Assisted Annealing

Figure 7

Spectrum of device annealed for 4 hours while applying current density of 9.9 A/cm² but no laser irradiation. (a) Blue curve shows initial spectrum, and red curve shows spectrum after DPP-assisted annealing for 4 hours. (b) Measured values of . For comparison with case where annealing was performed without laser irradiation (black curve), the case where annealing was performed with laser irradiation is also shown (Figure 6(c), red curve).

(a)

(b)