Structural and optical characterisations of nitrogen doped ZnO nanowires grown by MOCVD

► Nitrogen doped ZnO nanowires were grown by MOCVD. ► Nanowire morphologies were characterised by scanning electron microscopy. ► Low temperature photoluminescence display DAP band due to p-type impurity in ZnO. ► Intensity evolutions of Raman peaks were correlated to the nitrogen concentration. ► Nitrogen incorporation in ZnO nanowires shows a saturation character.