Wiley, physica status solidi (b) – basic solid state physics, 7(248), p. 1592-1595, 2011
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We report here on selected optical properties of core/shell Zn(1-x)Mn(x)Te/ZnO nanowires (NWs). The Zn(1-x)Mn(x)Te cores of the investigated structures (containing from 3.5 to 7% of Mn) were grown by the MBE technique using gold-catalyzed vapor-liquid-solid mechanism. Polycrystalline ZnO shells coating Zn(1-x)Mn(x)Te NWs were overgrown by the atomic layer deposition (ALD) method. Core/shell NWs were then examined by scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman scattering, and photoluminescence (PL) measurements. The lines characteristic of the ZnO band edge emission and the intra-Mn(2+) transition were observed in the PL spectra. Modification of the Raman spectra of as-grown Zn(1-x)Mn(x)Te/ZnO samples induced by the ZnO shell is demonstrated and discussed. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim