A. Levine et al., SPATIALLY DIRECT RECOMBINATIONS OBSERVED IN MULTIPLE DELTA-DOPED GAAS-LAYERS, Superlattices and microstructures, 23(2), 1998, pp. 301-306
Experimental and theoretical studies on n-type multiple delta-doped Ga
As layers are reported. Photoluminescence is measured and compared wit
h results of self-consistent electronic-structure calculations. A seri
es of samples with different donor concentrations in the delta-doped l
ayer and a fixed distance between adjacent Si-doped layers (d(s) = 300
Angstrom) were analysed. The PL spectra of the investigated samples d
o not show transitions involving confined electronic minibands. Howeve
r, the full width at half maximum of the observed main emission band m
ay be correlated with the calculated electronic miniband structures. (
C) 1998 Academic Press Limited.