Preparation and characterization of InGaAs quantum wires on V-groove patterned InP

We report on the characterization of InGaAs quantum wells (QWL) and wires (QWR) on V-groove patterned InP substrates. The quality of the QWL on the (100)-surface between the grooves is discussed concerning different sample preparation methods. The material composition and the thickness of these QWL is determined. The geometrical shape of the QWR in the tip of the V-grooves is measured by atomic-force microscopy (AFM) and compared with transmission-electron microscopy (TEM). The dependence of the QWR photoluminescence (PL) on sample temperature is studied.