Aloetic-Shaped SiC Nanowires: Synthesis and Field Electron Emission Properties

被引：5

作者：

Cao, Lianzhen ^{[1
,2
]}

Jiang, Hong ^{[1
]}

Song, Hang ^{[1
]}

Li, Zhiming ^{[1
]}

Liu, Xia ^{[1
,2
]}

Guo, Wanguo ^{[1
,2
]}

Yan, Dawei ^{[1
,2
]}

Sun, Xiaojuan ^{[1
]}

Zhao, Haifeng ^{[1
]}

Miao, Guoqing ^{[1
]}

Li, Dabing ^{[1
]}

机构：

[1] Chinese Acad Sci, Key Lab Excited State Proc, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2010年 / 10卷 / 03期

关键词：

SiC Nanowires; Aloetic-Shape; Synthesis; Field Emission Characteristic; LOW-TEMPERATURE; NANORODS; GROWTH;

D O I：

10.1166/jnn.2010.2081

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Novel ordered aloetic-shaped SiC nanowires were synthesized on a Si (100) substrate by reacting methane with silicon dioxide using iron as a catalyst. Their structure and chemical composition were studied by scanning electron microscopy (SEM), X-ray diffraction (XRD), and transmission electron microscopy (TEM). The wires have a tapered aloetic structure with a top diameter about 50-80 nm and a length about 10 Am. The field emission properties of the aloetic nanowires were investigated. A stable emission with current density of 0.525 mA/cm(2) at an applied electric field of 2.2 V/mu m and a low turn-on electric fields of 1.4 V/mu m were observed. The excellent field emission properties indicate that the aloetic-shaped SiC nanowires may have potential applications in flat panel displays and electron field-emitting devices.

引用

页码：2104 / 2107

页数：4

共 13 条

[1] A FORMATION MECHANISM FOR CATALYTICALLY GROWN HELIX-SHAPED GRAPHITE NANOTUBES [J].