Carbon nanotube purified ink-based printed thin film transistors: Novel approach in controlling the electrical performance

In this paper we present a comprehensive study of the solution-based printed carbon nanotube purified-ink devices while introducing a new idea of controlling the electronic performance of these devices. One of the most important concerns in nanoelectronics is whether the nanotube-based devices will ever enter the reality world of circuit designs? What are the fundamental and critical issues to be resolved? Which parameters affect the device performance most? A comprehensive study of the relationship between mobility, on/off ratio, and nanotube network density is presented for the first time in detail. This study reveals a clear road map towards experimental control over the performance of solution-based nanotube thin film transistors for a wide range of state-of-the-art applications.