The optical properties of intentionally carbon-doped Ga1-xInxAs lattice mat
ched to InP grown by metal-organic molecular beam epitaxy were studied. Sta
ndard photoluminescence and photoluminescence excitation measurements were
carried out on samples with different doping concentrations and a carbon-re
lated acceptor level was found 42 meV above the valence band edge. (C) 1999
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