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High Purity Synthesis of (6,4) Single-Walled Carbon Nanotube by Surface State Control of Co Catalyst

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Abstract

Single-walled carbon nanotubes (SWNTs) have many outstanding properties due to the unique 1-dimensional structure. Especially, fabrication of the high performance device utilizing the intriguing opt-electronic property is regarded as a very promising output. However, the opt-electronic property is decided by the helicity of graphene wrapping, which is defined as SWNTs chirality, making the chirality control of SWNTs a very critical issue. Towards this goal, many researches about the precise control of catalyst are reported and the effects of catalyst size [1] and crystal structure [2] are well studied. On the other hand, the correlation between catalyst surface condition and chirality is seldom being studied, and the details still remain unclear. In this study, systematic investigations are carried out aiming for the elucidation of the correlation between SWNTs chirality and catalyst surface condition.

© 2017 Japan Society of Applied Physics, Optical Society of America

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