Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1417109 | Carbon | 2010 | 8 Pages |
Abstract
An efficient CNT-based field emitter was prepared on a Cu substrate using thermal chemical vapor deposition. Field emission characterization of the emitter showed a very low turn-on field, high emission current, long time stability and good resistance to degradation in high-field, long-time exposure. These superior field emission characteristics are attributed to a lower contact barrier and higher conductivity of the substrate. High resolution transmission electron microscope analysis showed the presence of a conducting phase, TiC, at the metal-CNT interface, providing a low contact resistance barrier.
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Authors
Indranil Lahiri, Raghunandan Seelaboyina, Jun Y. Hwang, Raj Banerjee, Wonbong Choi,