Holst, P. Maxim, R. Heitz, A. Hoffmann, I. Broser , B. K. Meyer, C. Wetzel , E. N. Mokhov, P. G. Baranov , Appl. Figure 1 . Figure 2 . Figure 3 . Excitation intensity dependence of the peak energies of donor-acceptor pair bands in Mg doped GaN for various doping levels.
Dotted lines are guides to the eyes.
Figure 4 . PL spectra are given recorded from the surface and substrate faces. Figure 5 .