Articles techniques et présentations

COMSOL-based modeling software developed at Ostendo Technologies allows detailed simulation of semiconductor lasers and light-emitting diodes. In this work, we study the inhomogeneity of the carrier injection into optically active quantum wells of polar and nonpolar III-nitride light emitters. Despite the absence of polarization-induced potential barriers, the nonpolar multiple-quantum well structures are shown to suffer from strongly inhomogeneous injection which becomes stronger in longer-wavelength green light emitters with deeper quantum wells. We show that indium incorporation into waveguide layers noticeably improves the injection uniformity.