| Abstract Scope |
Carbon nanotubes hold great potential but also face significant challenges for various electronic application, such as nanoelectronics, RF electronics, macroelectronics, and printed electronics. Regarding nano- and RF electronics, obtaining high-density horizontally aligned carbon nanotubes with high semiconducting purity (>99.99%) has been an important but elusive goal, and we have developed ways for aligned nanotube synthesis, growth of predominantly semiconducting nanotubes, nanotube cloning, and more recently wafer-scale assembly of pre-separated semiconducting nanotubes, which have also been used to produce RF transistors with fT and fmax simultaneously larger than 70 GHz. In addition, we have demonstrated that carbon nanotube networks based on pre-separated semiconducting nanotubes hold great promise for thin film transistors and macroelectronics, and have been successfully used for active-matrix organic light emitting diode displays, liquid crystal displays, and also hybrid circuits. Furthermore, we will report our progress of printed nanotube electronics, including the demonstration of self-aligned printed submicron transistors. |