ABSTRACT
This chapter shows the revenues of various sectors of the carbon nanotube (CNT)-based end-user industry. Electronics and energy are the two largest sectors, where multi-walled CNTs (MWCNTs) are the most widely adopted materials. In general, their light weight, high electrical and thermal conductivities, large surface-to-volume ratio, and relatively low cost are the underlying factors for adopting MWCNTs as the filler materials for composites and coatings. The growth of ultra-long CNT along one direction on the wafer surface would enable large-scale integrated circuit design with standard layout strategy. The main challenge for the foreseeable future is obtaining well-aligned, all-semiconducting single-walled CNT films with high uniformity, high array density, and low defect density on large wafers. For electronic applications, chemical vapor deposition graphene on copper is a mature process to yield single-layer graphene. CNT and graphene have unquestionably unique and superior properties.
