Growth and Characterization of Mn Doped SnO2 Nanowires, Nanobelts, and Microplates

被引：34

作者：

Herrera, Manuel ^{[1
]}

Maestre, David ^{[1
]}

Cremades, Ana ^{[1
]}

Piqueras, Javier ^{[1
]}

机构：

[1] Univ Complutense Madrid, Fac Ciencias Fis, Dept Fis Mat, E-28040 Madrid, Spain

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2013年 / 117卷 / 17期

关键词：

NANORIBBONS; LUMINESCENCE;

D O I：

10.1021/jp4007894

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Undoped and Mn doped SnO2 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 SnO2:Mn microplates, identified by EBSD, with higher Mn content, and the increase of the luminescence emissions associated to, oxygen vacancies related defects was demonstrated.

引用

页码：8997 / 9003

页数：7

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