Semiconducting Carbon Nanotube Schottky Diode and Integrated Circuit Applications

A new type of a Schottky diode based on a 99% semiconducting carbon nanotube (CNT) percolated network is demonstrated. The fabricated CNT Schottky diode shows excellent rectifying characteristics which are significantly modulated by the embedded control gate bias. In addition, we present integrated circuit applications of digital logic circuits (OR and AND gates) and an analog circuit (half-wave rectifier) with the fabricated CNT Schottky diode. The circuits show an accurate logic function and excellent rectification. Thus, we believe that our results represent an important step toward realizing circuits based on CNTs.