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HL: Fachverband Halbleiterphysik

HL 85: Poster Session II

HL 85.120: Poster

Donnerstag, 17. März 2011, 18:00–21:00, P4

GaN-ZnO-InGaN/GaN core shell nanorods — •Ingo Tischer¹, Mohamed Fikry², Manfred Madel², Ferdinand Scholz², and Klaus Thonke¹ — ¹Institut für Quantenmaterie, Gruppe Halbleiterphysik, Universität Ulm, 89069 Ulm — ²Institut für Optoelektronik, Universität Ulm, 89069 Ulm

For sensing application it is desirable to have GaN nanorods with InGaN quantum wells which are standing upright in a well defined pattern. Our approach starts with ordered GaN pyramids on which in a first step ZnO nanopillars were grown. This structure was overgrown with GaN, and subsequently with a radial GaN/InGaN multi quantum well structure.

We report about the structural and optical properties of this nanostructured material which we investigated by spatially resolved cathodoluminescence, photoluminescence, energy dispersive X-ray spectroscopy, and X-ray diffraction.