Gas-phase synthesis of size-classified polyhedral In2O3 nanoparticles

被引：4
|
作者：
Nanda, Karuna Kar [1 ]
Rouenhoff, Marcel [2 ,3 ]
Kruis, Frank Einar [2 ,3 ]
机构：
[1] Indian Inst Sci, Mat Res Ctr, Bangalore 560012, Karnataka, India
[2] Univ Duisburg Essen, Dept Engn Sci, Inst Technol Nanostruct, D-47051 Duisburg, Germany
[3] Univ Duisburg Essen, Ctr Nanointegrat Duisburg Essen CeNIDE, D-47051 Duisburg, Germany
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 07期
关键词：
INDIUM OXIDE NANOPARTICLES; SHAPE-CONTROLLED SYNTHESIS; OPTICAL-PROPERTIES; CATALYTIC GROWTH; NANOWIRES; PHOTOLUMINESCENCE; NANOCRYSTALS; CRYSTALLINE; PARTICLES; SURFACES;
D O I：
10.1039/c2jm14306b
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：
Monodisperse polyhedral In2O3 nanoparticles were synthesized by differential mobility classification of a polydisperse aerosol formed by evaporation of indium at atmospheric pressure. When free molten indium particles oxidize, oxygen is absorbed preferentially on certain planes leading to the formation of polyhedral In2O3 nanoparticles. It is shown that the position of oxygen addition, its concentration, the annealing temperature and the type of carrier gas are crucial for the resulting particle shape and crystalline quality. Semiconducting nanopolyhedrals, especially nanocubes used for sensors, are expected to offer enhanced sensitivity and improved response time due to the higher surface area as compared to spherical particles.
引用
收藏
页码：3133 / 3138
页数：6
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