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Fe solubility, growth mechanism, and luminescence of Fe doped ZnO nanowires and nanorods grown by evaporation-deposition

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Piqueras de Noriega, Javier y Alemán Llorente, Belén y Ortega Villafuerte, Yanicet y García Martínez, José Ángel (2011) Fe solubility, growth mechanism, and luminescence of Fe doped ZnO nanowires and nanorods grown by evaporation-deposition. Journal of Applied Physics , 110 (1). 014317-1. ISSN 0021-8979

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URL Oficial: http://dx.doi.org/10.1063/1.3609073


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Resumen

Fe dopedZnO nanowires,nanorods, and urchin-like nanostructures have been grown using an evaporation-deposition method with compacted mixtures of ZnS and Fe_2O_3 powders, with different Fe contents as precursors. Treatments at 950 °C under argon flow lead to the growth of irondopednanowires,nanorods, and other nanostructures on the surface of the compacted sample. The incorporation of iron into the nanostructures has been investigated via energy dispersive spectroscopy as well as by cathodoluminescence in a scanning electron microscope and photoluminescence in an optical microscope. The iron content in the structures is limited to the range of 0.5–0.7 at.% and does not depend on the content in the precursor. Bright and dark field imaging and twist contour analysis via transmission electron microscopy support the possibility of a dislocation driven growth of the nanowires.


Tipo de documento:Artículo
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© 2011 American Institute of Physics.
This work was supported by MCINN (MAT2009-07882, CSD2009-00013) and UCM-BSCH (Group 910146).

Palabras clave:Dislocation, Driven, Twist, Photoluminescence, Whisker, Arrays
Materias:Ciencias > Física > Física de materiales
Código ID:23635
Depositado:22 Nov 2013 08:14
Última Modificación:07 Feb 2014 11:05

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