Surface-Assisted Luminescence: The PL Yellow Band and the EL of n-GaN Devices

<table>Semilog plot of the surface luminescence spectrum that must appear in n-GaN devices when holes are injected near their surface. Electrons in surface states (SE) using virtual states to accomplish radiative transitions to the valence band (see text) would reflect the exponential distribution with the energy of the SEs.</table>

Advances in Condensed Matter Physics

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Figure 4

Figure 4: Surface-Assisted Luminescence: The PL Yellow Band and the EL of n-GaN Devices 