Infoscience

Conference paper

Luminescence and TEM-investigation of laser induced defects in (Al,Ga)As heterostructures

Laser induced defects in (Al,Ga)As heterostructures have been investigated. Luminescence topography reveals three different defects, a luminescent B, a nonradiative D as well as dark line defects (DLD). Luminescence and excitation spectra together with TEM measurements indicate a point defect or point defect complex for B and D. Defect B is described by a configuration coordinate (CC-) model with low vibrational energies. Defect DLD consists of extended dislocations

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