Synthesis and characterisation of zinc oxide tetrapod nanocrystals

被引：43

作者：

Newton, Marcus C. ^{[1
]}

Firth, Steven ^{[1
]}

Matsuura, Takashi ^{[1
]}

Warburton, Paul A. ^{[1
]}

机构：

[1] UCL, Dept Elect & Elect Engn, Torrington Pl, London WC1E 7JE, England

来源：

EMAG-NANO 2005: IMAGING, ANALYSIS AND FABRICATION ON THE NANOSCALE | 2006年 / 26卷

关键词：

D O I：

10.1088/1742-6596/26/1/060

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Zinc oxide is an important group II-VI semiconductor material with optical properties that permit stable- emission at room temperature. We report on the synthesis of highly uniform nanocrystalline ZnO tetrapod (ZnO-T) nanostructures through a modified chemical vapour transport process. These self assembled nanocrystals are characterised by four cylindrical arms with a hexagonal facet all of which are joined at a tetrahedral core. Studies are carried out on ZnO tetrapods using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), photoluminescence spectroscopy (PLS) and Raman measurements. We find a simple technique to quench visible emission found in ZnO tetrapods as grown. We also observe Raman active modes suggesting that nitrogen is incorporated within our samples.

引用

页码：251 / +

页数：2

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