Nanotransfer Printing of Organic and Carbon Nanotube Thin-Film Transistors on Plastic Substrates

TL;DR

This paper introduces a nanotransfer printing method enabling high-resolution fabrication of organic and carbon nanotube thin-film transistors directly on plastic substrates, avoiding incompatible processes and chemical treatments.

Contribution

The study presents a novel nanotransfer printing technique for fabricating organic and CNT transistors on flexible plastic substrates, improving process compatibility and device performance.

Findings

Successful fabrication of pentacene TFT with mobility 0.09 cm^2/Vs

CNT TFT exhibits ambipolar behavior and no hysteresis

Devices demonstrate high on/off ratios (~10^4)

Abstract

A printing process for high-resolution transfer of all components for organic electronic devices on plastic substrates has been developed and demonstrated for pentacene (Pn), poly (3-hexylthiophene) and carbon nanotube (CNT) thin-film transistors (TFTs). The nanotransfer printing process allows fabrication of an entire device without exposing any component to incompatible processes and with reduced need for special chemical preparation of transfer or device substrates. Devices on plastic substrates include a Pn TFT with a saturation, field-effect mobility of 0.09 cm^2 (Vs)^-1 and on/off ratio approximately 10^4 and a CNT TFT which exhibits ambipolar behavior and no hysteresis.