Carbon-nano tube structure, method of manufacturing the same, and field emitter and display device each adopting the same

摘要

Provided are a carbon-nano tube (CNT) structure, a method of manufacturing the same, and a field emitter and a display device each adopting the same. The method of manufacturing CNTs includes growing first CNTs on a substrate on which a catalyst material layer is formed and growing second CNTs on the surfaces of the first CNTs from a catalyst material on the surfaces of the first CNTs. The second CNTs grown on the sidewalls of the first CNTs emit electrons at a low voltage. In addition, the provided CNT structure obtains a high electron emission current due to the second CNTs used as electron emission sources. Furthermore, the CNT structure obtains uniform field emission due to the uniform diameter of the first CNTs. IMAGE