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The growth process of carbon nanotubes (CNTs) by chemical vapor deposition is modeled using multilayered perceptron artificial neural networks technique. The model was trained using six growth parameters. Numerous values for these parameters were gathered from published articles. The six growth parameters were catalyst thickness, pressure of acetylene gas, temperature and time of pretreatment and...
These Carbon Nanotubes (CNTs) are considered as one of the promising electron-emitting materials available for use in cold cathode applications such as vacuum microelectronic devices. It has been shown that due to the high aspect ratio (small diameter and relatively long length) it is possible to obtain electron emission at a relatively low applied electric field. Because of this property, CNTs may...
Carbon nanotubes (CNTs) have been widely applied in field emission (FE) due to their high geometric aspect ratio and low work function. More recently, researchers have introduced ruthenium dioxide (RuO 2 ) as a field emitter because of its excellent chemical and thermal stability due to its oxide nature. This study used the surface morphology of CNTs and the field emission (FE) stability of...
In order to improve the performance of field emitters nowadays, carbon nanotubes are used instead of conventional materials such as silicon and metals. In this paper, field emission characteristics of three different multi-wall carbon nanotube films have been compared, which are fabricated by different methods, including direct growth, evaporation coating and flow assembly. The field emission current-voltage...
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