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아 래
1. 제목: Carbon nanotubes as Electron Sources
2. 연사: W.I.Milne Professor (Centre For Advanced Photonics and Electronics
Dept of Engineering Univ. of Cambridge)
3. 일시: 2006년 2월 27일(월요일) 오전 11시
4. 장소: 물리학과 세미나실(31355호실)
5. 초록: Carbon nanotubes (CNTs) are a unique form of carbon filament/fiber in which the
graphene walls roll up to form tubes. They can exhibit either metallic-like or
semiconductor-like properties. With the graphene walls parallel to the filament axis,
nanotubes (single wall metallic-type or multi-wall) exhibit high electrical conductivity
at room temperature. This high electrical conductivity allied to their remarkable
thermal stability has made CNTs one of the most intensely studied material systems
for field emission (F.E.) applications. In this paper I will describe the growth of
multiwall CNTs and their application in a range of field emission based systems
including their use in SEM sources, emitters for use in microwave amplifiers and as
emitters in Field Emission Based displays.