Unsorted single walled carbon nanotubes enabled the fabrication of high performance organic thin film transistors with low cost metal electrodes

Chad S Smithson; Shiping Zhu; Tony Wigglesworth; Yiliang Wu

doi:10.1039/c3cc43920h

Unsorted single walled carbon nanotubes enabled the fabrication of high performance organic thin film transistors with low cost metal electrodes

Chem Commun (Camb). 2013 Oct 9;49(78):8791-3. doi: 10.1039/c3cc43920h.

Authors

Chad S Smithson¹, Shiping Zhu, Tony Wigglesworth, Yiliang Wu

Affiliation

¹ Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, Canada L8S 4L8. smithc62@mcmaster.ca zhuship@mcmaster.ca.

PMID: 23959188
DOI: 10.1039/c3cc43920h

Abstract

Transistors with a diketopyrrolopyrrole-quarterthiophene (DPP-QT) semiconductor and low-cost Al or Cu electrodes were studied. Albeit a large charge injection resistance exists between DPP-QT and Al or Cu, the resistance was dramatically reduced when unsorted single walled carbon nanotubes (SWCNTs) were blended into the DPP-QT film. This led to a high mobility of 0.64 and 1.1 cm(2) V(-1) s(-1), respectively, for Al and Cu devices, which is similar or even better than the device using gold electrodes (0.78 cm(2) V(-1) s(-1)).