Fabrication of Carbon Nanotubes Field Emission Cathode by Composite Plating

被引:4
作者
Wang, Fang-Hsing [1 ]
Lin, Tzu-Ching [1 ,2 ]
Tzeng, Shien-Der [1 ,3 ]
机构
[1] Nation Chung Hsing Univ, Dept & Inst Elect Engn, Taichung 402, Taiwan
[2] Natl Taiwan Univ Sci & Technol, Dept Elect Engn, Taipei 106, Taiwan
[3] Nation Dong Hwa Univ, Dept Phys, Hualien 974, Taiwan
关键词
Carbon Nanotube; Field Emission Cathode; Composite Plating; DEPOSITION; SPECTROSCOPY; EMITTERS; GROWTH;
D O I
10.1166/jnn.2010.1709
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Carbon nanotubes (CNTs) have high aspect ratio and have great potential to be applied as the field emission cathode because of its large field enhancement factor. In this work, a high performance carbon nanotube field emission cathode (CNTFC) was fabricated by using a composite plating method. The CNTs were purified by acid solutions and then dispersed in electrobath with nickel ions at temperatures of 60, 70, or 80 degrees C for the electroless plating process on glass substrate. The resulting CNT-Ni composite film has strong adhesion on the glass substrate. The degree of graphitization and the microstructure of the CNTFCs were studied by Raman spectroscopy and scanning electron microscopy. The field emission properties of the CNTFCs show a low turn-on electric field E-on of about 1.2 V/mu m, and a low threshold electric field E-th of about 1.9 V/mu m. Such a composite plating method could be applied to the fabrication of large area CNT field-emission displays.
引用
收藏
页码:4607 / 4611
页数:5
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