Fabrication of Carbon Nanotube Channels on Three- Dimensional Building Blocks

Single-wall carbon nanotubes (SWNTs) are the most attractive material in the fields of nanoscience and nanotechnology due to their chemical, physical, and electrical properties. Carbon nanotubes (CNTs) are being applied in various kinds of nano devices such as transistors, electrodes, sensors, and filters because of the semiconducting, metallic, optical, and structural properties. To date, CNTs are mainly synthesized, grown, and dispersed on a two-dimensional substrate. However, it is not easy to fabricate and manipulate CNTs on a particularly structured substrate for various applications. In the case of CNTs on planar substrates, it is hard to get high conductivity and sensitivity because of physical disconnection and low surface areas due to randomly oriented two-dimensional structure.