|Title:||Field Emission properties of Ex-situ and In-situ Iron Catalyst-Grown Carbon Nanotubes|
Lim Yu Dian
Tay Beng Kang
|Citation:||Field Emission properties of Ex-situ and In-situ Iron Catalyst-Grown Carbon Nanotubes / V. Labunov and other // 12th IEEE Nanotechnology: materials and Devices Conference (NMDC2017),( Singapore, 2 – 4 October 2017). – Singapore. – 2 р.|
|Abstract:||Carbon Nanotubes (CNTs) are grown using ex-situ and in-situ iron catalyst sources, and their respective Field Emission (FE) properties are investigated. At similar CNT heights (~16 µm), it is found that in-situ catalyst-grown CNT film shows better FE properties than ex-situ catalyst-grown CNT film. At the same time, it is found that in-situ CNTs show enlarged tips, forming “thumbtack”-shaped CNT tips. From the simulation study, enlarged CNT tip emits higher FE current, possibly due to the larger emission area. The obtained results demonstrated that in-situ catalyst-grown CNTs show better FE properties than ex-situ catalyst-grown CNTs.|
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