On the thermal growth and properties of doped TiO2 and In2O3 elongated nanostructures and nanoplates

被引：6

作者：

Cremades, A. ^{[1
]}

Herrera, M. ^{[2
]}

Bartolome, J. ^{[1
]}

Vasquez, G. C. ^{[1
]}

Maestre, D. ^{[1
]}

Piqueras, J. ^{[1
]}

机构：

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

[2] Univ Nacl Autonoma Mexico, Ctr Nanociencias & Nanotecnol, Ensenada, Baja California, Mexico

来源：

PHYSICA B-CONDENSED MATTER | 2014年 / 453卷

关键词：

Nano- and microstructures; Transparent conducting oxides; Growth mechanisms; Optical and electronic properties; INDIUM OXIDE; SINGLE-CRYSTALS; TIN OXIDE; LUMINESCENCE; CATHODOLUMINESCENCE; MICROSTRUCTURES; DISLOCATIONS; NANOCRYSTALS; MICROPIPES; NANOWIRES;

D O I：

10.1016/j.physb.2014.02.004

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this work, the driving forces behind the growth mechanisms of In2O3 and TiO2 micro- and nano structures grown by an evaporation-solidification method are discussed. Effective or limited doping incorporation and its influence on the growth and morphology of the low dimensional structures are also assessed. A dislocation driven growth mechanism is proposed for indium oxide, indium tin oxide (ITO) and zinc doped indium oxide (IZO) nanowires. This growth mechanism is extended to the growth of IZO nano-plates. On the other hand, different low dimensional TiO2 morphologies, mainly nanowires, needles, and bidimensional nanostructures, have been obtained by an anisotropic induced growth. By introducing Cr in the precursor mixture, needles are formed showing stepped lateral faces related to oxygen defect stoichiometry areas as observed by EDS mapping. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：92 / 99

页数：8

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