Aerosol-jet-printed, 1 volt h-bridge drive circuit on plastic with integrated electrochromic pixel

Mingjing Ha, Wei Zhang, Daniele Braga, Michael J. Renn, Chris H. Kim, C. Daniel Frisbie

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

In this report, we demonstrate a printed, flexible, and low-voltage circuit that successfully drives a polymer electrochromic (EC) pixel as large as 4 mm2 that is printed on the same substrate. All of the key components of the drive circuitry, namely, resistors, capacitors, and transistors, were aerosol-jet-printed onto a plastic foil; metallic electrodes and interconnects were the only components prepatterned on the plastic by conventional photolithography. The large milliampere drive currents necessary to switch a 4 mm2 EC pixel were controlled by printed electrolyte-gated transistors (EGTs) that incorporate printable ion gels for the gate insulator layers and poly(3-hexylthiophene) for the semiconductor channels. Upon application of a 1 V input pulse, the circuit switches the printed EC pixel ON (red) and OFF (blue) two times in approximately 4 s. The performance of the circuit and the behavior of the individual resistors, capacitors, EGTs, and the EC pixel are analyzed as functions of the printing parameters and operating conditions.

Original languageEnglish (US)
Pages (from-to)13198-13206
Number of pages9
JournalACS Applied Materials and Interfaces
Volume5
Issue number24
DOIs
StatePublished - Dec 26 2013

Keywords

  • Capacitor
  • Electrochromic pixel
  • Flexible electronics
  • Ion gel
  • Printed electronics
  • Transistor

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