Growth of Uniform Carbon Nanotube Arrays with Sandwich Technology
In this wort we report a novel approach to grow structured, highly oriented Carbon Nanotubes (CNTs) that are vertically aligned to the substrate with adequate field emission. Growth is done at lithographically defined dots of catalysts, which can be deposited on metallic , semi-conducting and glass substrates. A sandwiched catalyst structure and microwave plasma chemical vapor deposition led to the formation of uniform CNT-arrays of 3 × 3 μm2. The method is easily scalable to large areas. The CNT-arrays exhibit a stable field emission of 20 mA and a current density of 50 mA/cm2 at a rather low electric field of 5. 33 V/μm.
Carbon Nanotubes Field Emission Microwave Plasma CVD Sandwich Growth
Zexiang Chen Rainer Pietig Qiang Zhang Binjun Zhu Pingxiong Lan Tao Yu Daniel den Engelsen Peter K. Bachmann Irmgard Koehler Astrid Lewalter
School of Opto-electronic Information, University of Electronic Science and Technology of China Chen PHI LI PS Research Laboratories, Weisshausstrasse 2,D-62066 Aachen, Germany
国际会议
上海
英文
76-80
2007-03-12(万方平台首次上网日期,不代表论文的发表时间)