Low-voltage polymer/small-molecule blend organic thin-film transistors and circuits fabricated via spray deposition

By Simon Hunter, Jeremy W. Ward, Marcia M. Payne, John E. Anthony, Oana D. Jurchescu, Thomas Anthopoulos

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Organic thin-film electronics have long been considered an enticing candidate in achieving high-throughput manufacturing of low-power ubiquitous electronics. However, to achieve this goal, more work is required to reduce operating voltages and develop suitable mass-manufacture techniques. Here, we demonstrate low-voltage spray-cast organic thin-film transistors based on a semiconductor blend of 2,8-difluoro- 5,11-bis (triethylsilylethynyl) anthradithiophene and poly(triarylamine). Both semiconductor and dielectric films are deposited via successive spray deposition in ambient conditions (air with 40%-60% relative humidity) without any special precautions. Despite the simplicity of the deposition method, p-channel transistors with hole mobilities of >1 cm2/Vs are realized at -4 V operation, and unipolar inverters operating at -6 V are demonstrated.

Original languageEnglish (US)
Article number223304
JournalApplied Physics Letters
Volume106
Issue number22
DOIs
StatePublished - Jun 1 2015

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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