Regensburg 2013 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 69: Poster Session: II-VI semiconductors; Organic semiconductors; Heterostructures

HL 69.1: Poster

Wednesday, March 13, 2013, 16:00–20:00, Poster A

Fabrication and characteristics of ZnO/ZnS core-shell nanotubes based on template-fabrication techniques — •Samar Tarish^1,2, Chengliang Wang¹, Ahmed Al-Haddad^1,2, Z.B. Zhan¹, Huaping Zhao¹, and Yong Lei¹ — ¹Fachgebiet 3D-Nanostrukturierung, Institut für Physik & IMN MacroNano (ZIK), Technische Universität Ilmenau, Prof. Schmidt Str. 26, 98693 Ilmenau, Germany — ²Department of Physics, College of Science, University of Al-Mustansiryah, Baghdad, Iraq

Here we will introduce a new technique that has been employed by fabricating ZnO/ZnS one-dimensional core-shell nanotubes, where synthesized by a two-step growth process with the assistance of AAO templates. Phase and structural analysis have revealed that the ZnO core and ZnS shell have a polycrystalline phase. First ZnO nanotube arrays are synthesized within AAO template by using atomic layer deposition (ALD) at 250°C. Then, by using sulfating route, were employed at different temperatures to form ZnS-coated ZnO nanotubes structures. Then ZnO/ZnS core-shell coaxial nanotubes are created. The morphology and structure of ZnO/ZnS coaxial nanotubes are characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), X-ray energy-dispersive spectroscopy (EDX), transmission electron microscopy TEM). The composition state has analyzed by Raman spectroscopy