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发信人: heat (heat@给你的热量), 信区: NanoST
标  题: Applications of CNTs
发信站: 哈工大紫丁香 (2004年04月08日05:39:08 星期四), 站内信件

Applications of carbon nanotubes
Carbon nanotubes are expected to become a key material in ultrafine devices
of the future, because of their unique electrical characteristics, and thei
r extraordinarily fine structure on a nanometer scale. Other merits offered
by carbon nanotubes are light weight, extremely high mechanical strength (th
ey have larger tensile strength than steel), their ability to withstand extr
eme heat of 2000 in the absence of oxygen, and the fact that they emit ele
ctrons efficiently when subjected to electrical field. Currently, research i
s being conducted throughout the world targeting the application of carbon n
anotubes as materials for use in transistors and fuel cells, which we are cu
rrently working on, as well as big TV screens, ultra-sensitive sensors, high
-resolution AFM probes, catalysts, and pharmaceuticals.
In 1999, in collaboration with JST, we developed a nanostructure fabrication
technology that uses carbon nanotubes as key material for electronic device
s on the nanometer level, and succeeded in connecting carbon nanotubes with
other materials using a process of "solid-chemical reaction" [Ref. Press Rel
ease]. In 2001, NEC and the Japan Science and Technology Corporation and the
Institute of Research and Innovation succeeded in developing the world's fi
rst compact fuel cell for mobile devices, which used carbon nanotubes for th
e electrodes [Ref. Press Release ]. In September 2003, we developed a protot
ype of a carbon nanotube transistor that is more than ten times faster (base
d on mutual conductance) than silicon MOS transistors (announced at the 2003
International Conference on Solid State Devices and Materials (SSDM) as par
t of a project by the New Energy and Industrial Technology Development Organ
ization (NEDO)).
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