Growth and characterization of mn doped SnO_2 nanowires, nanobelts, and microplates



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Herrera, Manuel and Maestre Varea, David and Cremades Rodríguez, Ana Isabel and Piqueras de Noriega, Javier (2013) Growth and characterization of mn doped SnO_2 nanowires, nanobelts, and microplates. Journal of Physical Chemistry C, 117 (17). pp. 8997-9003. ISSN 1932-7447

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Undoped and Mn doped SnO_2 nanowires, nanobelts, and microplates have been grown by a thermal evaporation method that enables the morphology and the Mn content in the structures to be controlled. The structural and morphological characterization was carried out by scanning and transmission electron microscopy (SEM and TEM) and electron backscattered diffraction (EBSD). A crystallographic model has been proposed to describe the SnO2:Mn microplates. X-ray photoelectron spectroscopy (XPS) and energy dispersive spectroscopy (EDS) demonstrated the incorporation of Mn into the SnO2 lattice in concentrations up to 1.6 at % depending on the thermal treatment employed for the growth of the structures. Variations in the luminescence of the doped nanostructures as a function of the Mn content have been studied. A correlation between facets of the SnO_2:Mn microplates, identified by EBSD, with higher Mn content, and the increase of the luminescence emissions associated to, oxygen vacancies related defects was demonstrated.

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© 2013 American Chemical Society.
This work was supported by MICINN (Projects MAT-2009-07882, MAT-2012-31959, and CSD-2009-00013). M.H. is thankful for the financial support from PASPA-UNAM and Conacyt 102519 project. We thank M. Amatti and L. Gregoratti for their help during the XPS measurements.

Uncontrolled Keywords:Tin Oxide, Nanoribbons, Luminescence
Subjects:Sciences > Physics > Materials
ID Code:23690
Deposited On:27 Nov 2013 18:40
Last Modified:13 Feb 2018 15:21

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