All-Printed Thin-Film Transistor Based on Purified Single-Walled Carbon Nanotubes with Linear Response

الملخص EN

We report an all-printed thin-film transistor (TFT) on a polyimide substrate with linear transconductance response.

The TFT is based on our purified single-walled carbon nanotube (SWCNT) solution that is primarily consists of semiconducting carbon nanotubes (CNTs) with low metal impurities.

The all-printed TFT exhibits a high ON/OFF ratio of around 103 and bias-independent transconductance over a certain gate bias range.

Such bias-independent transconductance property is different from that of conventional metal-oxide-semiconductor field-effect transistors (MOSFETs) due to the special band structure and the one-dimensional (1D) quantum confined density of state (DOS) of CNTs.

The bias-independent transconductance promises modulation linearity for analog electronics.