5465.1:
Controlled Growth of Carbon Nanotubes in Chemical Vapor Deposition
Abstract
In view of the future use of carbon nanotube (CNT) field emitter arrays the goal of this project is to acquire a deeper understanding of the catalytic growth of CNT and to develop techniques which allow the growth of CNT’s on a substrate with well defined geometry with respect to the following properties:
- Position and spacing between individual CNT’s on a substrate.
- Orientation of the CNT’s to the substrate normal (perpendicular).
- Control over length and diameter of the CNT’s.
- Control over the quality of the CNT’s in terms of straightness
In this projects the stringent requirements to produce competitive field emitter arrays using carbon nanotubes (CNT) are taken as benchmark for the control over the geometry.
The use of CNT's in field emission arrays is today perhaps the most closely to application. In many works of this and others groups the potential of CNT field emitters has been demonstrated. Though CNT are attractive for field emission it remains a challenging task to show that a technology to produce CNT field emitter arrays competitive with the current metal microtip field emitter arrays can be realized.