%0 Journal Article
%A Alemán, B.
%A Hidalgo Alcalde, Pedro
%A Fernández Sánchez, Paloma
%A Piqueras De Noriega, Francisco Javier
%T Thermal growth and cathodoluminescence of Bi doped ZnO nanowires and rods
%D 2009
%@ 0022-3727
%U https://hdl.handle.net/20.500.14352/44201
%X Bi doped ZnO nanowires and rods have been grown by a catalyst free evaporation-deposition method with precursors containing either ZnO and Bi_2O_3 or ZnS and Bi_2O_3 powders. The use of ZnS as a precursor was found to lead to a higher density of nano- and microstructures at lower temperatures than by using ZnO. Energy dispersive x-ray spectroscopy (EDS) shows that the Bi content in the wires and rods is in the range 0.15-0.35 at%. Bi incorporation was found to induce a red shift of the near band gap luminescence but no quantitative correlation between the shift and the amount of Bi, as measured by EDS, was observed. The I-V curves of single Bi doped wires had linear behaviour at low current and non-linear behaviour for high currents, qualitatively similar to that of undoped wires.
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