Abstract
Epitaxial layers of InAsxP1−x:Mn are grown by organometallic vapor phase epitaxy on (100) oriented InP substrates. The InAsxP1−x layers are deliberately doped with Mn from the vapor phase. Photoluminescent properties are studied as a function of alloy composition for x=0–0.52. Experimental data indicate that the manganese acceptor level is pinned to the vacuum level for the range of alloy compositions studied.