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.

No abstract

No abstract

Transfer printing methods are used to pattern and assemble monolithic carbon nanotube (CNT) thin-film transistors on large-area transparent, flexible substrates. Airbrushed CNT thin-films with sheet resistance 1k  square -1 at 80% transparency were used as electrodes, and high quality chemical vapor deposition (CVD)-grown CNT networks were used as the semiconductor component. Transfer printing was used to pre-pattern and assemble thin film transistors on polyethylene terephthalate (PET) substrates which incorporated Al 2 O 3 /polymethylmethacrylate (PMMA) dielectric bi-layer. CNT-based ambipolar devices exhibit fieldeffect mobility in range 1 -33 cm 2 /Vs and on/off ratio ~10 3 , comparable to the control devices fabricated using Au as the electrode material.

No abstract